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I would much rather footlock SRT and pick up half the rope weight or srt with two hand ascenders Jumar style or go further and explor all the other options that require less effort, for example who wants to double line footlock up a 100' Euc, when SRT techniques are way less effort! Why use two lines when one is more efficient!!!!
X-man
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Earlier I stated I ascend twin line, unless I find it more of an advantage to go SRT. Well, I've dedicated this last week to climbing 100% SRT. This way, in knowing both modes of ascent, I could pour thought into the pure SRT side and look at where and why an SRT ascent might be less or more of an advantage.
The "GO SRT" guys, it seems, are comparing SRT to the 2:1 DdRT and in all instances I would agree, entirely and without question with SRT being more efficient, but for one reason trumping all others; 1:1 vs. 2:1.
In comparing / contrasting 1:1 twin line vs. 1:1 SRT, however, I feel the "GO SRT" guys might be making some assumptions. X-man asks "Why use two lines when one is more efficient!!!!? Well, because two lines gives the feet twice the rope and twice the friction available for securing. As far as 'weight' and 'lifting', twin line work begs for 11 mm line, as 13 mm just becomes excessive. The difference in weight between single 13 mm and a twin 11 mm really isn't a whole lot and yes, the weight increases the higher up you go, but realistically, you generally only footlock until you get into the crown, then you climb the tree and advance and tend your friction controller along with you as you climb the tree. Efficiency then becomes a matter of how easily slack can be tended.
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I'm still trying to just figure out how to get a secure footlock that won't slip. That has nothing to do with ascenders, hand placement, ascnender configuration, nothing - just hanging on a rope trying to find some way to secure the footlock so I can stand up without slipping. But that's just me; others may have a completely different experience. But from posts of many, a lot of people seem to find footlocking difficult.
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Many people try footlocking 2:1 DdRT, calling it double line (which means two ropes, not one doubl<u>ed</u> rope) or use the term doubled rope, of which there are <u>two</u> doubled rope techniques, 2:1 DdRT and 1:1 DbRT, also called twin line, or doubled static. In comparing, you need to understand exactly what is being described. If you're having trouble footlocking 2:1 DdRT, that should not be a surprise. In fact it should be expected for two major reasons; the inherent inefficiencies with ascending a 2:1 system, and in 2:1 DdRT it is doubled rope in front and above you, but it is single line as far as your feet go. Unless the climber states they are using a dual ascender, you can almost be assured the doubled rope technique being described is 2:1 DdRT.
Twin line ascent with paired (or) dual ascenders is the only rope technique that offers the advantage of double friction through the feet, but requires a dual ascender. The ascender is nearly friction-free so there is little difference there between twin ascent using duals and SRT using a single ascender. The grip diameter on twin rope, by your hand, is twice that of single line, another plus for many, especially you big-paws.
In my last week of 100% SRT on all climbs, my feet slip more because of half the amount of rope friction I am accustomed to, especially the two day of rain climbs. This means I have had to slow down, focus more and really pay attention to my boots gripping the rope and where the rope was laying across the boots to prevent slipping, which, as far as efficiency goes, is a deal killer. Wet boots and rope made it worse.
Men, I love SRT. But tree work being as hard as it is to begin with, I just can't help but gravitate toward the easier method. I feel that with the single handled dual ascenders I use, I WORK WITH AN ADVANTAGE IN EFFICIENCY AND OPTIONS THAT THE REST OF YOU DON'T. Since I derive all my income from climbing, I should really care less about what the rest of you use. But I DO care. Your frustrations come through. I know how easy footlocking can be, so to read about the problems you experience, I feel the pain. We are all one, in the sense of being a professional community.
And I know that I am one of only a few on this planet mining the benefits of twin-line ascent because the single handled dual ascender does not currently exist in the market. You can cut the backside handle off the Kong Trender, or pair a left and right ascender together yourself, like Blinky has done. Otherwise you simply can't experience these advantages firsthand, I'm sorry to say.
That being said, the 'GO SRT" guys, touting the advantages over twin line, you realistically just can't know the differences.