looking for leaks

[Jackie Onassis]

I agree with you that you should be more aggressive on the turn with loose peelers, of which there are many at 1/2. Another benefit to this is you won't get checkraised that much on the turn at this limit, so you can bet and check behind on the river (usually a better alternative to checking the turn and calling the river). That said, if you do check behind the turn a lot, you should be calling more rivers. This is board dependent, but in the long run it will pan out.

Basically you should be raising preflop a lot more, probably around 17-19. Other than that most stuff is either fine or will follow with increased PFR.