all right Neo or maybe how French would say new which is not a new gri petel is listing this as a completely new blay device so let's see why I had this for about 5 months I did a bunch of climbing I did a bunch of testing and I have a bunch of mixed feelings about this meox so about a year ago I got an email from Sebastian petzel turns out that his grandpa developed the original idea of grigory so I felt very honored by such email and he offered me to test this and said that I can say whatever I want about it so this video is not sponsored by petel now what was funny when later I was exchanging details with someone from petel team and they said that it is safe even in the case of your strange experiments in case you haven't seen I have made a video explaining the physics of how gri works and I showed a bunch of ways how it would not work oh [ __ ] so let's do some of those strange experiments and compare grigory with neox while grigory weighs 175 G neox broke my scale because my scale doesn't like blay devices above 200 G but Jokes Aside it's 60 G heavier and if you would hold them side by side you would feel a difference however this extra weight did not seem to bother me much while delaying now while grigory has a very simple mechanism where a bunch of frictional forces contribute to overcoming the tension in the spring and then the cam moves and pinches the Rope again I have explained everything in this video and it's very interesting and I highly recommend to see that because Neo actually kept all of that design you can see there is still same spring camming action but now we have a wheel which can spin but also it can move up and down and if it's in up position the wheel is blocked from spinning and at that point it acts essentially the same as grig [Music] so what does all of that mean in practice well let's start with the good the Rope does run really smoothly for the device it's actually very satisfying it's super smooth however notice that while I'm feeding slack I'm not touching the device and if this is how you like bling and maybe you are coming from tubular Style devices you can probably stop this video right here go buy this and you will be really satisfied thank you for watching now if you stayed let me present some of my speculations I think when petzel was developing the original grigory this smooth action was actually what we were trying to achieve however if you try to feed the slack like this with original grigory depending on your rope thickness and many other factors it's very likely that the grigory will simply lock and you will have some trouble but creative climbers came up with a solution is to press on the cam to disengage it and continue feeding slack like this which actually worked so well that if you would go to any at least Europe cracks you would see that majority of people is belaying like this right now and of course there is many wrong ways how to do this and I showed a bunch of wrong ways in the same video however if you keep the rope in your brck hand even if you're pressing on the cam and the climber would fall at that moment the grigory is most likely to lock and actually if you check the manual of grigory you will find this listed as an option of giving slack fast but guess what if you check the manual of neox there is only one way to give slack now so here are some more of of my speculations original grigory is actually designed so well that it's quite hard to make it fail and that's why it became so popular and that's why so many of bad ways of using it became very popular and that's why we still have accidents with it unfortunately so this all brought a lot of bad rep for the grigory which is kind of strange when one of the safest devices is the most criticized probably devices and this is what I think petel tried to fix by hinting that you know what do not touch the device however giving slack like this became so popular not only because this other method wasn't always reliable giving slack like this is actually more comfortable and bling like this is more comfortable and here are a couple of reasons I can always give as much slack as I want and my blade device is not falling down while I'm doing that and I'm in the comfortable position now with Neo you can actually give slack quite fast but the delay device will be bouncing all over the place however there is another issue if I give slack and I prepare to give more slack and now I need to take well guess what first I need to bring my Brak hand closer to the device before I can take so I need to do some arm juggling and only then I can take with the other method if I'm giving slack and suddenly I need to take well I just take that's much more practical so can you belay like this with Neo well the manual doesn't say anything about this I tried asking petel and I still haven't received reply to my emails so if I will do I will add a pinned comment now in practice it does work but check this out or listen this out so yeah it makes a ratcheting sound when you try to pull the Rope fast and and I gave this device to my friends to try they were like is this broken so I think it's not broken however it's very noticeable and if you are in very quiet crack and somebody does I can only imagine when this will become even more popular and this is going to happen in the cracks okay let's say you don't care about Tranquility at the cracks people shout there anyway blast music dogs that are barking so a bit of is no problem for you and the only thing you care is is it safe so same as grig if you press on the cam but do not hold the Rope your climber is going to un alive and since the Rope runs smoother through Neo he or she will unal life faster so hold the Rope now what about a completely No Hands situation first let's start with a gri which as you can see can definitely slip but now let's switch to Neo whoa it falls uh faster it actually falls faster it falls smoother smooth death yeah you can have a smooth death with kind of wants to lock it goes but it's not enough for it to lock yeah seems like the gri is more grabby and more likely to stop the fall in case of no hand situation so it looks like a slight downgrade compared to the grigory in terms of safety and they said I won't be able to make it fail with my strange experiments but let's switch the gears a little bit and let's talk about taking the slack since the Rope runs much smoother through the device my initial thought was that it's going to be much easier to take the slack for the last 5 months when I went climbing I kept alternating between neox and gri and I couldn't understand if it's easier to help the climber with the new device or not so let's do some more of my strange experiments as they say first I tried simple jump taking but it was very hard to feel the difference except that Neo was clicking so then I built this setup where I could compare the force needed to lift up my weights essentially comparing the friction inside the blade device yeah so it's moving up at 0.65 0 64 so let's try the same with the old gri for some reason it feels harder but it's reading the same 63 interesting 65 same feel the same so I tried with 60 kog and I couldn't feel the difference I tried with 40 kilog and where still was no difference which left me so confused that I probably tried a thousand of times to measure it again and again and again until I just stopped the camera and I noticed something which now absolutely makes sense remember when I said that the wheel can go up and and once it's in up position it's locked and then it acts the same as grigri well duh it only spins while it's under certain load so it's easier but if you load it more then it locks and then it's the same so this is 30 kg the wheel spins and then it locks and now the wheel is not spinning anymore so now I want to figure out what's the load needed for the wheel to stop spinning and stop helping let's try 20 kg okay so now it's doing this weird clicky clacky thing so that pretty much explains why this happens let's see at what weight it would just spin freely and be nice so at 15 and it goes easy to pull hard easy hard easy hard easy hard it's like okay this is only 5 kilos it's still clicking but less so it seems like above 20 kilos it's permanently locked below 20 kilos it's clicking clack clack clack clack cl cl clck and only on very very very minimal loads it's running very smoothly so disappointing I wanted always to run smoothly and then catch fast that would be ideal device cl cl so yeah it is easier to run the Rope through the device without load but as soon as the load is applied which is when you're helping your climber it will start clicky clacky and then at some point there is no difference anymore so kind of an improvement but could be better oh and also another thing when I'm going down sometimes the wheel needs to click back into certain position before it Smo again this is kind of annoying when you're belaying sometimes when you want to lower the climber just a little bit there is this little jerk of like click and then it's smooth for the rest of the time let me show you this again so what's the big takeaway of all of this new invention I absolutely love how smooth the Rope runs through the device now don't get me wrong this is fantastic I'm impressed by this design and if you are delaying like this then as I already said this is a massive upgrade to you and you should definitely buy this you will be very happy oh otherwise I do understand the direction that petzel took however I think that this is a little bit of missed opportunity original Gregory was one of the safest devices on the market and if only instead of trying to Advocate as to keep the hands away from it they would have made it somehow always lock maybe similar to Revo if the Rope is running at certain speed maybe it would lock that would be amazing and no clicky sounds please and maybe improve a little bit ergonomic how you are holding the device and that would be the perfect bling device for me personally all right now the best part for me of making these nerdy videos is the geeky nerdy people who leave comments on my stuff I actually feel very honored by that and if you are one of these smart nerdy or geeky people or maybe you want to be then you might enjoy enjoy today's sponsor brilliant brilliant is where you learn by doing with thousands of interactive lessons in math data analysis programming and even AI I always thought that I am a visual learner and I can simply soak up all the information by just watching YouTube however I've been really enjoying brilliant for its structured approach which also makes you solve problems in a fun and interactive way which is really great for developing your critical thinking and actually remembering things and if you accidentally jump ahead of your own abilities and get completely stuck they also have courses on very Basics so you can fill up 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