What do I do? I have to standard raise to 5x and a c-bet is 2/3 the pot. I'm having a probem with some of the regulars floating on my c-bets and its getting expensive. In position, OOP, it doesn't matter. I try and c-bet about 60-70% of flops.

How do you deal with these guys?

Is firing second barrels worth it? I've check raised a few AA's too but I don't get to do that safely much. Any other tricks?