Choked TIP Ideas, Questions

an aluminum chock could be made to be mounted midline by taking a piece of aluminum stock and splitting it in two, gouging out 1/2" to allow for the rope and put reverse teeth (like on a pantin). Have an aluminum clip to hold it together and the friction saver will also hold it together. Thats how I imagine it anyway.
 
I normally run a Rr style FS with a butterfly against a Pinto (small ring) and a 'biner in the other eye (large ring). It's mid-line attachable and can be set by slacking your base tie out enough to isolate the load to the FS on a limb, or isolate before the climb. I have yet to set it up with a lighter weight (separate) retrieval line...sometimes the tail weight is enough to pull the butterfly away from the Pinto and you need to keep an eye on it.

Nick, being on a base tie with another climber in the same tree while working would have me nervous too!
 
I also choke up on my TIP.
I determine the length of the retrieval side of the rope and put an Alpine Butterfly in it.
I then attach a 10mm oval Mallion to the Butterfly then put the work side of my rope into the Mallion.
I make sure that the closure on the Mallion is facing away from the tree.

It can not come undone or be cross loaded and provides reduced friction when it's retrieval time.
 
For example: http://www.youtube.com/watch?v=Z3JYOjUMrPE

(no tech tips in that video, just two guys pruning)

I was on a base tie on the left, and he is polesawing away on DRT... I was constantly looking over my shoulder. My work is primarily pruning and we do a lot of big trees with two guys in them which is what lead me to start exploring canopy anchored PSP options.
 
Bonner, I think I understand you setup fully but I don't see how there is no side loading of the delta, even if only one side of the triangle is up against the tie in point you are still potentially side loading that axis of the delta. Please add a picture and correct me on this. I am going to steal your idea for the retrieval line with the handle, sounds better than yanking on a throw-line.

My idea was a thimble that could be installed mid line to the bite of the alpine butterfly then thread climbing end as normal. this way the load is still on the rope but the thimble would hopefully reduce the friction when removing.

DMM makes some thimbles for cord but they have to be threaded. If there was one big enough for climbing rope it could be used on the end of the line with a separate retrieval line attached to it.
 
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...but I don't see how there is no side loading of the delta, even if only one side of the triangle is up against the tie in point you are still potentially side loading that axis of the delta...

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Screw Links do not suffer from the same weak gate syndrome that plague carabiners and are overall far stronger. You can use a properly closed, 10mm or 3/8" Link with confidence in ways not possible with a carabiner.

Dave
 
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Eric, With even ONE redi it can be impossible. .............

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I prefer a canopy anchor and use either a large screw link or RtoR FS and have been practicing traverses that require a recoverable redirect.
It could be considered the same as a redirect in the same tree as well. I had trouble removing my line from a natural redirect in this climb that caused me to consider what you are talking about.
I would call it an Recoverable SRT Redirect with a Canopy Anchor.
Starting out with the Canopy anchor, either with a large oval screw link or Ring to Ring FS. Then I set the redirect with a biner on both sides of webbing. If the redirect is at least halfway, all I have to do is take a dog leash to one of the biners and with the other end, snap it to my SRT line. I take enough of the SRT tail with me to reach my destination. When I recover my line, the stopper knot or bitter end knot on the SRT line catches the screw link or RtoR FS, and the butterfly and biner from the anchor catches the dog leash with the redirect attached and it all comes back to me. If the redirect is not more than half way I put a small piece of bungee cord on the dog leash to make up the difference.
I have no problem with side load on a screw link because once it is tightened, it does not have a hinge and forms a solid and secure link connection.
I hope this makes sense. I'll do a video when the weather gets nice.
 
I have been using this for the more than a year now. I has been working great for me. It installs mid line, and is easly pulled out even with a couple redirects (lower in the canopy). I have turned the biner around so that the gate faces away from the tree, and started using the splice instead of the butterfly. When the splice is used I either use an 8mm pull down line or bring the tail up and tie it off the the biner. has worked well for me.
353732-SRTconnection.jpg
 

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Now that looks good to me! I remember debunking the idea in my head when I was envisioning it as a base tie method, but in that application, I would totally fly it. NICE!
 
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I have been using this for the more than a year now. I has been working g......

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I like that and turning the biner around is one of those "why not" statements.
I too, often attach the tail to my canopy anchor, it is where I send up my DdRT or anything else I don't want to carry with me on the ascent.
I do have one thought, if you attach the pinto to your splice and the tail to the biner it may not be easy to distinguish between your climbing line and the tail if you stop along the way up. Perhaps a couple of Butterflys on the tail that can later be removed before retrieval. Don't know, just something to help distinguish the two.
I like those pinto pulleys as much as the HC's, maybe more!
 
I will have to pick up a quick link or two and try them out. The pinto looks pretty slick in that setup and must help a little bit on retrieval with the reduced friction.
Today in a honey locust I set my friction saver and jammed a butterfly against it with a biner to back it up. The tail off the knot was only about six feet long so I could reach it at a high point and then switch to ddrt to work the rest of the tree. First time doing this and it worked very smoothly. The transfer was so simple, removed the rope wrench and tied in the other end and away I went. Def. going to do it this way more often.
 
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Now that looks good to me! I remember debunking the idea in my head when I was envisioning it as a base tie method, but in that application, I would totally fly it. NICE!

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Thanks. I set it up as a basil once but could not see the advantage of it. So I stick with it in the tree.
 
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I do have one thought, if you attach the pinto to your splice and the tail to the biner it may not be easy to distinguish between your climbing line and the tail if you stop along the way up. Perhaps a couple of Butterflys on the tail that can later be removed before retrieval. Don't know, just something to help distinguish the two.
I like those pinto pulleys as much as the HC's, maybe more!

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I have actually not had a problem determining which was which. If I set it remotely (seldom) when I pull it up I go right into tying the hitch or put a slip not in it to designate. On retreival a simple tug on the rope tells all. I did find that the outside of the splice showed a little wear last week after trying (worked) to pull down with the tail passed through the becket of the pinto (very sleek and simple). With the butterfly you get a different piece of rope in the spot every time you set it up, avoiding this wear. So I would recommend the butterfly anyhow.
 
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