Kind of a repost? but different?

I think the biggest factor due to the party exp distribution change is amount of spawn each member is recieving. If your partying with somebody who kills insanely fast but your not getting enough monsters to kill your EXP will suffer.

If you are contributing fairly to party experience gains the change will not affect you at all because even though you are leeching less from their kills your gaining more from yours

I wouldn't think so considering newties are crap to solo, your assuming that the party training you would train on solo + some extra exp from the party, but it kinda isnt, newties are horrible unless you have everyone killing everything at the same rate.