Usually at the end of my workouts (strength training), I'm not very fatigued or tired, although I do lift heavy weights (ill pyramid my way up to 95% of my max and do 2-3 working sets of 2-3 reps depending whether i can get the 3rd rep or not) but I'm just never tired afterwords. I could continue to do at least 4 more working sets, but i don't i'm supposed to. Then I'll do 2 x 8 sets of moderate-heavy skull crushers (i use a weight that i can only get 8 good reps out of), and 3 sets of weight bench dips till failure. But about 2 min after my workout, im fine and could go throw another whole workout. Should powerlifters be very fatigued after a workout , or is this normal? Will my muscles and strenth still go up? Should i throw in a 3rd lighter set of skull crushers and work to compelete failure (like with the last few reps only being able to go a third of the way up)?