ATC type descender

Hey jakers, welcome to the buzz. A ring as a stitch plate isn't a bad idea but I'd prefer this thing after giving it some short runs.

I've never used one of these before so I'm probably more impressed than someone who has experience with them. It weighs nothing, doesn't hockle the rope, has a couple holes for different configurations, and has channels to keep the rope in line. I can't really see any reason to use my 8 over this thing.

Here's a few pics. The rope is imori (12mm)


OPSBG1_zpse4f8d4ae.jpg


OPSBG2_zps597750a2.jpg


OPSBG3_zpsf07b0707.jpg


The first picture is under load. You can see in the last picture the difference in the slot sizes to accommodate smaller rock ropes.
 
Yeah Nick that makes sense but in order for the ring to ride up above you I think you would have to let go of the break strand, in which case you you would be falling anyway, even then i think theres a good chance the weight of the tail would keep the ring near the biener, maybe not though. but with Evan using a hitch above the ring, it couldnt go anywhere. just an thought.
 
Thanks Adam, I just replied without seeing the last coulple of posts, didnt mean to beat the horse. Hopefully it works good for you. I've never seen a tube device with a solid keeper like that, looks cool, all of mine have a little plastic coated wire loop, I actually broke the keeper on one and almost nailed my belayer with it, now I clip it to my gear loop through the tube part.
 
I am lost as to the 'hitch above the ATC thing'... You can use an autoblock prussick BELOW a hitch that works, but above? I never got that part, only commented on a good ATC. I will pick up an OP SBG with my amazon points next time around though for sure after Adams review.
 
I probably wouldnt put the hitch above either but the guy who started the thread said he planned on using it "under a fully functional hitch" maybe hes planning on just leaving his srt harware on the line and putting a decender below it? I dunno
 
I never understood the OP, a hitch above an atc wouldnt do much IMO having a hitch, ie autoblock, under an atc is a great backup and especially helpfull in rappeling in rock climbing scenarios.

The big fear in rock climbing is that a user will get vertigo and let go of the rope, falling to their death, with an auto block underneath this risk is negated.
 
It's funny, the itcc told me I couldn't use a kong robot or a contents scarab because the instructions said that the Prussia goes above the device. I never understood why one would want to do it that way. I also couldn't see why that would mean it wouldn't work with the hitch below the device. I presume that it would be allowed in a comp to have the Prussia above the device then but it would be a pain in the .
 
Adam, the different grooves in your SBG re to provide varying friction. Putting the brake end of the line through the deeper V groove will give you additional holding power. Especially when rock climbing this can be a great benefit.

I imagine with arbo ropes and managing just your own weight using the shallow grooves will work best.

I have been considering one of those for years, thanks for being my guinea pig!
 
The Omega is what I use and have been for the last couple years. No problems with the 12mm I've noticed. For some pine work I climb up, working on the way up and I have a 8mm line I use to just get down. The smaller side works well for this. Also the two holes for biner attachment will increase/decrease friction...
 
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I used a hitch above it, like you would if you were putting an 8 on to descend after footlocking doubled rope.

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Exactly. I haven't quite implemented SRT, but I'd use this for both anyway. To me it doesn't make sense to untie a hitch, just to descend. I always thought it was a good idea to keep the whistle test in mind...

The idea is that if someone were to blow the whistle when you were working you have to immidiately let go of what you're doing. What happens? Obviously that would be dangerous with a saw in your hand, but consider if you were descending on a device, SBG, ATC, or F8 without a hitch. You hit the ground, not so with the hitch, which if it is a VT or similar won't add a significant amount of friction while you're holding it open in one hand and controlling the descender in the other.
 
I may have to return my unused ATC and go with the SBG. I'm pretty sure mine won't work with the larger rope, and I really like the solid keeper/ability to adjust the friction.
 
I get what you are saying Sonshine, But if you install an Autoblock prussick it provides the sme anount of friction but enables you to run the ATC and the Autoblock with the same hand.

It is a much better system. I will stipulate though that by using a hitch above the ATC you dont need to untie it.

Check out this video for a helpful demonstration of what I am describing.
http://youtu.be/gqBTV16dpN0
 
The idea to have the Autoblock above the Device is that it cant get jammed into it because the User didnt get his setting right. Unfortunately that happens.

I'd prefer the Autoblock below as well, as it gets way less Friction and works smoother.
 
Now that I watched that I understand. It seems the main benefit is using it one handed. Ill try it some time, bu I think the other setup would be quicker to setup, and you don't need to use your lanyard when switching over.
 
Although it would be very difficult to install the atc above the prussic if your hanging on the prussic. that is one reason I would put the atc device under the prussic; if your already hanging on the prussic
 
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Although it would be very difficult to install the atc above the prussic if your hanging on the prussic. that is one reason I would put the atc device under the prussic; if your already hanging on the prussic

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I did feel my last post lacked clarity, but I was on my phone and lazy. I meant that it seemed quicker to use the ATC or F8 like you say, under the prussic. I do agree, I think it would be impossible to install when you were hanging on the line.
 
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It's funny, the itcc told me I couldn't use a kong robot or a contents scarab because the instructions said that the Prussia goes above the device. I never understood why one would want to do it that way. I also couldn't see why that would mean it wouldn't work with the hitch below the device. I presume that it would be allowed in a comp to have the Prussia above the device then but it would be a pain in the .

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I think their theory might be that anything above the prussick could push against the top of the prussick which would allow everything to release if you didnt have hands on it. I believe it is a pretty slim chance with the devices you mentioned but that is my thought.
 
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