Okay, So at the gym I use a lever machine to do my squats. It has great padding for my shoulders and it eliminates the z and x axis. So the only work my legs do is in the y axis(straight up and down). I can load up a lot of weight on this without fear of hurting myself and if I fail on my last day of my 10's then the machine catches the weight without me being crushed. And I did fail on my second set of those 10's so it was good. My 10 rep max on the squates is 250 lbs and I dont think I can do this with the barbell because of balancing issues and it seems a little dangerous. My 5 rep max is going to be 300lbs But I want to know what you guys think? Should I reduce my load and use the free weight or stick with the higher load on the machine.