if you made the haybale stacks staircase up just right you could clear 7 feet!
Good one, 'jhc': You're memories coincide with my own. One day at USC--maybe Bobby Avant even partook--we hauled over some Ramp someone had out there for some purpose, just to experiment: The leverage it provided was considerably more than it's height, ~6 inches. So, yeah, we were approaching what seemed stratospheric, aka Bobby Avant's & Charley Dumas's normal heights.
That was right before that Russian introduced the built-up, Rocker shoe--which was promptly outlawed.
Bet you'll get a kick out of this one: At Masters Meets, I occasionally take a break from Throws and head over to the HJ. After first dealing w/ the dilemma of wearing or doffing my glasses--which I once broke upon landing--I try to ignore the ridiculously high (for us) landing pit: it's most strange to be in the middle of your modest roll around the (quite low, ~4 ft.) bar, only to encounter the immense plastic spongemats, hardly a "pit".