Honestly if you feel the need to spam the 3 buffs for either progress or durability (you'll see only 1 of each gives you that power hit) then in a session where you're grinding you'll probably want to do what you can to lower your power pool. The reason I say this is RNG can be unfriendly at times and you'll occassionally find yourself hitting the buff that gives a hit to power at each round (you'll will more than likely lose more power than regen it back per round when fully decked in gear).