All good advice so far. I'll just add that my first trad kill was with an old York thunderbolt, drawing ~43#@25", I know I underdrew the bow on the shot, and I still got over 12" of penetration.
Snuck in behind the last rib on a fairly steep quartering away shot, and the arrow stopped with the broad head lodged in the heart. Razor sharp head, the deer didn't even jump, it was like he didn't even feel it or know he was cut, just trotted for a step or two then walked off and dropped about 75yds out.
Point being, keep your shots smart and on target and your fine. This bow is no super hot performer, and I was shooting 500gr 23/64th Doug fir, so no super skinny shafts either.