I've barely played cash games on Party, but in the limited amount that I played there, it seemed like people were more willing to take a stand against my aggression than the people on PS.

I don't think 100NL and 200NL on PS are that bad of games, personally. Maybe they just suit my style. I make a lot of my profit by being really aggressive against people who don't play back at me, and most of the 6-max tables have at least 2 or 3 tight passives who let me run them over while all of us wait to make a hand against the 1 or 2 live ones.

Actually, at 200NL I'm finally running into a few players who are playing back at me. I'm bankrolled for 400NL, but I want to get better at handling these players before I move up.