Hmmm non-linear = nyzul isle + toto rak(modified to have diff items drop from diff bosses);

Tokens/points are a decent idea and have been used in many a game for EG stuff, having upgradable items (you know the kind) which require drops from the dungeon they're purchased from can balance the whole anyone/everyone will get this item, but only a few will have it upgraded in a shortish time.

Killing speed runs aside from removing the reward the reentry times have to be adjusted, there's no point in clearing a dungeon in 10 mins if you have to wait 6 hours from the last time of entry to reenter. Cookie Cutter parties become more a choice in how easy you want it to be than what drops you will get. Of course drop rates and token/coin/point rewards need to be adjusted to make it not take, assuming 0.25% drop rate, 400 runs @no more than 4/day = 4 months for 1 piece of gear to drop.

Bosses and every other mob in the dungeon need to "cater" to a particular job/class magic immune mobs, bosses that shift absorbtion type/immunities, and things of that nature would also go a long way to breaking up Cookie cutter parties.

Well back to work I go. ; ;