you know..... the old SP system had some of this stuff built in.
tanks got extra sp for tanking well, because you got sp for parries, and for blocking
You got extra SP for debilitating the monsters, so Weaponskills that did damage and debilitated, gave double bonuses.
you got SP for amount of hp cured, and for removing statuses.
incapacitations also counted as debuff pocs, but were gerenerally higher reward
regimens could reduce monster defenses, and do damage bursts, that allowed you to do more damage to harder monsters, which meant your sp reward scale was much higher (doing 100 damage on a higher level mob gave much more exp than doing 100 damage on a lower one.


main problem, is, people didnt share these exp benefits.

I think most of these bonuses are a good idea (dunno about the bonus for having one person with hate though, certain teams could be trying to bounce hate for more effeciency, and it actually be a more difficult task.), and with a base exp set in place and sharing of the bonuses, it allows you to go for mass murder, or difficult rewarding longer fights, depending on your playstyle. only problem is, will it be more exp than mass murder, or the same in a different way, and then trying to balance that into play.