for ex. 4 sets 6 reps, same weight
so if i go to failure or very close to failure on 1 set i wont be able to do effectively 2, 3 and 4 set. so is it ok to go to failure only on the last set, and on the first sets stop when i got all planned reps or when my rep timing really slows donw and im struggling to get next rep? and then go all out on 4th set