i have tried using p-slin off and on for a while and i have not experienced any increase in endurance, but my question is just because im not getting more endurance from it does that mean that im not reaping any of the other benefits(vascularity, pumps, weight loss while gaining muscle)? i have noticed a little increase in vascularity, and descent pumps but im not sure if thats from the purple wrath i take, i also take yellow gold so im thinking that could also be why my muscles are fuller and more pumped. i'd appreciate the help.