So uh, how bad is the variance supposed to be at 2-7?

[Burdzthewurd]

I started off with a 120BB upswing, now in a 150BB downswing (pat 9s never holding up on river, whiffing smooth 7s multi-way against pat 10s firing all the way, losing #2 to #1 often, etc.) I have a pretty decent grasp of the game after propping and playing it 3-handed and HU often, I don't feel like I'm especially playing badly. Deathdonkey, TT, 246, answers?