Party 2/4 Tightened up?

[AceHiStation]

I've been on a horrible run of cards(since I cashed out the other day)... KK flopping an A last 3 times I saw a flop, QQ flopping an A or K last 5 times, no AA in 600+ hands. That's besides the point. I am getting beaten up a bit but I'm gonna go ahead and hope its just variance.

My question is, has the game tightened up? I hear people saying Party 400NL is the toughest game besides the 2K game. [sucks out with gutshot 3-handed for a nice pot]... post continues... Do you guys think the players in 600NL or 1000NL are easier and has the 400NL toughened up?

Sorry for the low content, thanks for the time.
-Ace