I shoot 65lbs. But I'm 42 yrs. old, 6'0" and 240 lbs. You said you pulled 55 and it was fairly easy. Then start with that. You don't want to be straining with the weight when you're trying to hit a target. 55 is plenty to kill whitetails with.

KEEP IT LEGAL. KEEP IT SAFE. OR WE MAY NOT GET TO KEEP IT AT ALL.