No, the whole point of praying is to use piety so you can kill faster. The point of the prayer armor is so that you don't have to run up and down as much, it's been proven to be more efficient than bandos. That said, I have no idea what the average exp/hr it would be without prayer. An at 75k-80k xp in an hour, that's pretty good, I only manage 60k-70k an hour with pray :lol: Though my attack and strength are only 85 and 83 respectively :P