I have been trying to think about the sort of hands I should be raising flops with, particularly the most common sort of situation where we are two-hand to flop and facing a c-bet. But I don't seem to be getting anywhere.

I can see from my stats that a typical villain c-bets about 70% and folds his c-bet to a raise about 45%. This would suggest that when raised villain is continuing with about 38% of his range. This seems exploitable to me, but I don't see how to do it.

My first difficulty is that I'm not even sure what the top 38% of villains range looks like. Is it overpairs and sets on a low flop, TPGK and better on A-high and K-high dry flops, and 2-pair and combi-draws on wet flops? I really don't know. And even if I did know then I'm still not sure what I should be value-raising with. I suspect that I should be raising the top-half of villains continuing range but I cant be sure because when my hand is that strong then I think I'd prefer to just call behind and let villain continue his aggression on the turn. But if I do just call behind then that leaves me with no value-raising range at all.

Currently I tend to raise my strong draws as semi-bluffs and also sets on wet boards with the aim of giving villain the wrong odds to draw. My hand histories suggest that most of the regs I face also have this sort of raising range. Maybe this sort of range is perfectly fine but I feel sure that there must be a +ev way to widen it considerably.

Any thoughts/ideas at all would be much appreciated.