I don't pay attention to pump but I can't imagine blood would flow into the muscle any differently.. now as far as muscle fullness? I assume you might always look a little "flat" but the inflated look isn't great looking anyway in my opinion. Muscle hardness.. I've noticed mine are more dense but not as full.. but I am stronger.
Before you write me off as a 'chick' check out my pictures lol.. I have muscles :) ( Not saying YOU would write me off as a chick but people often do in regard of weightlifting, even though I am an Exercise Science major lol)