I believe that a person's capability to handle max lifts is personal. Also note that a max lift for a female lifter is harder than for a male athlete because of the mental energy they tap into: females tend to be able to hit higher percentages in am training than men. This means it also wears down on them more than on men and recovery is longer.
You mentioned that you were able to lift 500-917 lifts over 80% during your career. Those numbers - especially at the high end - are huge! From my training discussions with Coach Cioroslan at OTC my understanding was that the next goal would be to keep the volume the same but raise the percentage of which the lifts would be counted from: 500 lifts at 85% is a heavier load than 500 @ 80%.