MSEA Ver0.86 Patch Notes

Except there's more factors that go into part exp than just "110% bonus!".

Not everyone is going to be killing at the same speed as you. Not everyone has the same skills as you. Not everyone will be able to fill that ideal standards you're trying to put on them. Party training can go well, provided you reach the ideal criteria you're talking about. However, you're taking a gamble every time you train unless you're training with close friends who love grind4lyfe at the same pace as you for hours on end.

I don't quite get how detrimental it can be. If one's relying on a Bishop friend to train faster he's not that far from a leecher, mentality-wise. The fact that you have someone to share exp with now gives you 80% of what you kill (88% with party Bonus) and with HS that's either 132% EXP or 110% if there's a stupid cap. That's faster than training alone, just counting your own exp. Really? There is no point in partying because you're receiving 20% of your Bishop friend's killing rate? If you can solo, partying now isn't all that retarded as made out to be.