In the past...like over 15 yrs ago...Usually after a work out, I may be slightly sore but I feel pumped. Now older...even after these small work out, my muscles feels tired. I know if I pump through the reps, I'll feel more pumped, however it sort of goes with less than optimal form. In addition the lower number of reps that I do now...well I could essentially double it or maybe triple it. Perhaps I need to go back to that route. Get the pump and then just follow up with a few sets of clean reps.