I workout 2-3 times a week (depending on when i feel I recover). I do 2 high rep warmup sets, then one set heavy for as many reps as I can. For the heavy set, how many reps should I be busting out? less than 6? I grab a heavy weight, and pump out 5-6, then7, then struggle to get 8, until I hit around 11 and Im completely worn out. Should I not be doing such high reps for my final work set?