I have seena few differentbig bucks that were only about 5 yds away fromthe tree i had my climber in.I got to about 17 - 20 ft and no higher, andnone of the bucks everbusted me (unfortunately i was just waking up and never got a shot off at the big 8 pointer).Height matters to an extent though.Once you get about 17 ft in the air, your scent deffidentaly is not as strong and you can move around a little more without getting busted. I think25+ ft is kind of outrageous and people are just asking to get rocked out of the standby a hard wind, or a sick stomach.
Good luck to you!