i blocked only the most annoying stats using status materia on myself - i blocked pertification, minimizing, frogging, and confuse. at the start i cast regen, and wall on myself [and first of all - deathforce], and there i go
having tons of bad ailments really racks up the points - i got about 8000 [or more] for finishing the arena poisoned, berserked, darkened, cursed, with doom and petrify counting down over my head, having broken items, weapons, levels and locked some materia
and i usually get tissues as well
i noticed once a weird thing - i put a luck increasing materia on myself and after each fight [when the roulette shows up] i had 50% chance of getting into the next battle with NO handicaps [but it gives you pathetic score :/ ] - there were only two handicaps on the roulette - no handicap and level-down.
but this happened only once and i haven't been able to repeat that