As you will notice, limbs are usually specified at 50/60, 60/70. These are actually different limbs. So if you have the 50/60 bottomed out at maybe 63 pounds, you may be stretching things a bit.
Even based on this, I'd have to believe companies make allowances for this tolerance knowing full well the majority of people probably shoot them maxed out. Otherwise, you'd think that'd be a major warning pointed out in owner's manuals. To my knowledge, it's not...
Tell the guy he's an idiot and should get a clue...
