I might add just make sure the top half and bottom half have a piece of rope or something to conect them so you don't dip your feet and loose hold of the bottom piece.

I had a old Logy Bayou and the conecting rope broke on my way up and didn't know it when i got my safety all tied in my feet dipped down and my bottom piece went stright to the bottom of the tree.

I was left with the top part which was a rope going around the tree hanging on for dear life and squeezing the tree with my legs. It took me 30 min or more to get to a height where i could let go of the tree and fall safely to the ground . I was about 17 feet when i was tied in i fell about 7 feet and left the top of the climber in the tree till the next day it was a long dark and tiring climb down and i was totaly wiped out from having to squeeze the tree with my legs..

I sold it after that and learned a very important lesson . And as they say.. Don't Let This Happen To YOU!!!! Go light not heavy even if you are young snd strong because you can loose your strength very quickly when you are in a desprate situation and you life could hang in the ballance..