WOW, me too. Made mine in about 30 minutes last night and tried it on a few trees in the yard as it was getting dark. I used the two hole and slip knot as you did, works great. I tried it on a Poplar, Pine, and Maple. Only seemed to work on the maple. Not a problem , just about all the trees in my area are oaks, maples, or some other rough barked tree. Just could not keep the rope to stay up on the slick Poplar or Pine. If I had to use it on a Poplar or Pine I would just put a screw in step under the rope on the back of the tree to keep it from sliding down on ya.
Mine is about 15 X 20 so I think I will saw it in half and use the full piano hinge on the bottom to make it even smaller for the carry in and out. For the money and time it is pretty slick little project. However, I am also going to buy the new aluminum version of the Gorilla tree seat in Cabelas. I hunted with an outfitter that had all Gorilla treestands and this tree seat is the same exact seat that is used on their treestands. VERY COMFY ! This tree seat straps firmly to the tree and even flips up against the tree. Has backpack straps for carrying and weighs about 3 pounds. I will report back once I have hunted out of both for a few weeks.
nocams