Bounce, I am assuming your question is directed to me. The prussik is a quickie adjuster nothing more. I find it easier to use that than winding rope around the base of a tree. The prussik and snap will hold a decent load on it's own because I have tried it on stuff where I thought it would...
Friction from the bark plays somewhat of role to keep it from slipping. When the porty is loaded the attachment point will pull upwards a little, the rope has somewhat of a choking effect on the stem when the porty gets loaded. Never have had a porty slide right up a stem.
Even in pre GRCS...
Stig,:lol::lol: Your right. We have one of those also. For the smaller trees in a not so confined space the porty is just so much easier to use. Makes a good quickie friction brake without all the set-up and take down of a GRCS.
The biner just goes along with the porty. The porty is in our boom trucket most of the time. I have several rig points set-up on the truck mostly lifting eyes either welded or bolted to the truck bed for the porta-a-wrap. The biner is the only way to attach it.
Steel biner, with screw gate, 70...
I have been taking advantage of one of the guys that helps me out with his new Blackberry camera phone that takes some very nice pictures.
I made this little homemade set-up for a porty out of some odds and ends. I like it for doing light,medium duty type lowering using a porta-a-wrap. It is...
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