How do you work on your postflop game?

[nyc999]

Little Background: I was a winning limit player, spent 6 months at the $6's on PP for about a 15% ROI (damn rake!), and have now been at the $11's for about 2 months - with a positive ROI that I know is unsustainable in the long run.

However, I play the basic formula - tight in Lvs 1 - 3, open up a little bit in Lv 4, with a lot of pushing and raise/continuation bets.

My weakness is post-flop play, and I would bet that a lot of other STT players in the lower buy-ins have a similar problem. My question to the more experienced post-flop players - how did you get to that level of experience?

I'm thinking about adding either low buy-in cash games or MTTs on the side for the sole purpose of getting post-flop practice. Even if I break-even or lose a little, I think it will be profitable in the long run.

Other than the obvious posting hands and offering/reading feedback, I'd like to hear all suggestions...