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Bend radius is important for sure.

I might be mistaken here, but matching rope size to block matters to a theoretical degree. Isn't the sheave shaped to cup the compressed/ flattened rope to a degree. A large rigging block, like the 3/4" capacity that I bought early on, probably don't preserve the 1/2" rope strength as much as a...

I mark gear with electrical tape - red for rigging - lemon (yellow) for life support

http://read.dmtmag.com/i/32089-arbor-age-may-june-2011/12 Marl and half-hitch are not the same. This article says it decrease strength compared to a Running bowline. They are good to precede choking with a biner. Marls are good to put down the length of a long dead piece that will shatter...

$100 isn't cheap, exactly. I'd put that hundo into better climbing gear. Jeff's on a blake's hitch. again .02

You don't want to pinch the rope between the block/ pulley and the trunk? What are you trying to rig? People used to do a whole trees with one rope. Obviously, things have progressed. If you're rigging 100 pound limbs, you don't need a lot. A redirect pulley is a good idea. A biner works, too...

pulley, not block? A Pinto Rig Loopie The CMI 3/4" rigging block The Rig and Ring Medium size portawrap 2 or 3 CMI heavy duty loop runners.....something like 7 bucks each. And a few Big Dan carabiners.

I have never used my 3/4" blocks to weight capacity or size capacity. A half inch capacity block will suffice. Light NCR can easily be done off of the limb being pruned, so any possible damage will be limited to the piece you're removing anyway. In 8 years, I've gotten by, in my market, with...

So do you figure that it was an accident that he stopped it, like a hockle in the rope in the lowering device or such? I have a feeling that too many times things go okay too much because of luck. Groundwork is hard, and tiring, on a production basis. Easy to have a brain fart, especially...

Ray, did he reiterated the plan to you, or just say 'okay'. I say " crash land the tips, control the butt". They repeat or reiterate the plan. To easy for a groundie to hurt the climber with rigging. Another reason I like speedlining. I try to ask my guys what I could have said differently to...

How big/ heavy of pieces do you plan to rig with your gear, at this point? Negative blocking (dropping and catching, or more of an overhead rigging point?

You can use a munter hitch for lightweight rigging, in a pinch, and cheap nylon slings for zip lines and two slings clipped together, and girth hitched on either side of the cut, to hang pieces. Then disconnect and throw, or dice it up, hanging.

Your rope alone can do a lot. Basic natural crotch rigging. No worry about damaging the tree as it's a removal. For light duty rigging, I've been known to use the standing end of the rigging rope to anchor a POW or rope puller.