I have a question about what weight i should use training legs., my current routine looks like this: run half mile for warm up, leg press 90x20 180x 15 270x15 360x 10, squat 155x5x5 and ham curls. I started this particular routine two weeks ago with squats at 135 going up ten lbs a week. After next week I want to substitute squats for box squats. If I just kept up with regular squats i would be doing five sets of five at 175. My question is what weight should i do box squats at assuming it would be easier, since its shorter range, to keep getting stronger?