Most guys just don’t have a fucking clue. By using the 90%, I account for this bullshit. By using weights they can actually handle, guys are building muscle, avoiding burnout, and most importantly, making progress every workout. None of this is exactly revolutionary. I learned this in my freshman year. I’ve always made my best gains when I left just a bit in the tank. As for the “build too slow” criticism, people tell me that they don’t want to take three months to build up their strength. Where are you going to be in a year? Fuck that, where are you going to be in five years, when you’re still benching 205 with your ass halfway off the bench?