Your knees will hit if you have the top of the stand too low or in other words too close to the bottom section. If they hit raise the top higher on the tree to strecth out your legs. I am waiting on the foot rest to come and that willhelp move your knees out straighter also.Equalizer has the foot rests in stock but no mounting directions so they won't ship them till they get the instructions. How hard can it be to mount a foot rest? Ask DavidMil, they sent him one with his new stand order whenhe told them he would figure it out. He did say it wasn't cut and dry through.