What's the New EXP formula

The new system doesn't really affect exp gain whenever all party members are killing at similar speeds, but if you have one person pulling most of the weight, they will now gain a much bigger share of the exp.

So in other words its how it should have been from the start. I might start playing MS again if GMS gets this, got tired of all the little kids that leeched to high levels stealing my maps left and right.