I have seen my best 5/3/1 gains after 'resetting down' on the training maxes, and going for rep maxes. With the lower weight, you will be hitting weights you hit a few months ago, but getting higher reps each time.
This is the resetting thing that bulldog was talking about. and dont reset your training maxes on all lifts unless you have plateaued on all lifts. the system assumes that you will plateau, and when you do, drop training maxes on squat/dl by 20 lbs, and bench/press by 10 lbs.
In my 5/3/1 koolaid swilling and jimwendlernutswinging, i have said it a million times. let the reps make you strong