I shot those 120 pounders year round too. I'd have been a lot better off if I'd stayed at 80. That would have been light for me back then. At this point, if I can pull a bow that's poundage is higher than my age, I'm happy.
Longbowman raises a point I definitely agree with about the HH bows. They've got heavy, deep core limbs and heavy limbs like that are best suited to shoot a lot of arrow weight. Reflex/deflex bows can't match them in that category.