I have finally mastered the art of making adjustments while in the tree. First the upper portion then the lower. Just make sure that they are connected and that you are wearing a safety harness. Actually, i don't recommend this at all. I'm sure my luck will run out and i will be stuck up in a tree staring down at the lower portion of my climber.
I have an equalizer, I can adjust as I go, VERY safely. IMO, the BEST climber on the market.
www.equalizertreestands.com