[durron597]

I don't see why you don't think c-bets are profitable. Say you have AQ in LP after MP1 limps, and you raise and the limper calls with 77. The flop comes K9xrb and he checks you bet half the pot. Suddenly the limper is in a tough spot where he doesn't know whether he is ahead or behind and to find out he pretty much has to commit most or all of his stack. If you get a fold from 77 this way one time in 3 you make money.

Now, as far as preflop raises go, the idea behind limiting the field is reverse implied odds. Say you have a bunch of limpers and you have AK in the BB. So you make a small raise and 2 limpers call. The flop comes K56. Pretty decent flop for AK, except for the times you gave 56 the right price to call you preflop and now he gets a decent chunk of your chips. By raising more preflop in general you can narrow the range of your opponents hands more and you can be more confident you didn't just get bottom two flopped on you.

At least that's the idea, you also make valid points about trying to extract more value out of your TPTK, but I would image at the the 109s you won't be stacking AT every time when you have AK on an Axx board. Plus those times are relatively rare because there are only 4 aces in the deck, and even when they do occur the guys who let themselves get stacked with TP4K are going to call bigger raises with AT anyway.