Right a spot for a forced rep once in a while would be cool so I cannot get my strength up on my 1-2 rep max ..but I go to failure and beyond on my own by doing drop sets and super sets etc.. And for workouts that can hurt you such as barbell bench ..i never use barbells anyways. Just dumbbell so I can drop them if I feel I can't get the rep up. Or if I know I barely got the last one up. I'll make an attempt but consider that failure cuz it is if I can't get that one after up..