I now have first hand verifiable experience with this "mini wedge" now. The "climber on crack" we used at Mom and Dads seems to subscribe to it's virtues. These are FACTS that I HAVE experienced FIRST HAND! No hyperbole BS, no speculation, no physics guessing, KNOWN results.
Does it work? Kinda.
Does it guide the tree in the proper direction? Hell no! I had two instances where not only did the tree rotate, it went 45deg to the hinge, sheer pulling force was the ONLY thing that saved the targets!
Does it pull easier? Hell no! It took ten times more force to pull than a normal notch would have taken, and the hinge could have been set instead of having to nip here and there in hopes of it going over!
Is it easier to set up? Hell yes! He had a court date so it was churn and burn as fast as he could!
Is it practical? HELL NO!!
Will I use it again? HELL NO!!
I don't know how or why this was even thought of, it is UNSAFE and DANGEROUS in EVERY conceivable manner! Use of this will end with someone getting hurt or major property damage, not if, but WHEN!! If I had not been paying as close attention as I was and just floored my truck at the EXACT right moment, we would have taken out a garage!
This is a STUPID and DANGEROUS practice, any one that wants to be that lazy and thinks they understand things that much better, well, they deserve what they are going to get!