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Where do you put the pulley-and what kind?
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An expensive but very well designed and effective quick release is the Wichard sold by Sherrill. It clips onto the pouch webbing. Then you need a way to tension it with MA for precision longer range aiming. As many ways to do it as your imagination can come up with. Here a few to consider...
1. Attach a minimum 8mm diameter length of cord at the base of the pole, secure a Petzl Mini Traxion to the bottom eye of the Wichard with a small rated screwlink, run the cord up through the MT and and back down. Pull down on the cord coming out of the MT as much as you need to tension sling.
2. You could do the same with a closed hitch and pulley slack tender at the bottom of the pole and a micro pulley attached to the Wichard. Run the cord from the bottom of the pole up to the micro pulley and back down to the friction hitch, through the slack tender pulley, the tail is now exiting up with enough to length reach back up so you can pull it up comfortably. With this setup one hand grabs the slingshot rubber just above the pouch and pulls down and the other hand pulls up on the cord at the same time.
3. This is a more simple system that I've been using for a while, no MA but it's got few moving parts and is very sturdy. You just push it down from above and put your body weight into it. One hand on the sleeve, the other grabs the sling rubber just above the pouch. Works great, sling can be extended full length of 8 ft. pole and held by the Klemheist or your favorite hitch no problem. Still requires a Wichard or other secure snap release at the top of the system. Works on a single or two section 8ft. pole.
Detail of pulldown (pushdown actually) and hold setup. Do not be put off by the green electric tape, it just holds the #3 snap up vertical when you're attaching the pear link to attach the Wichard to the slider and Klemheist. Without the slider/sleeve the hitch tends to grab when you're trying to slide it down. The slider keeps the hitch in a released state as you push down and the hitch grabs as soon as you let go of the sleeve.
Detail of Wichard at top of system
Larger versions of photos here, click on "All sizes"
The advantage of a pulley tensioning system is you can use it on a 4 sectioned fiberglass pole which is easier to pack into the woods for long hikes.
-moss