^^ good post. i think good flops to check back and delay your cbet are flops which dont really hit your perceived range. if villains are tuned in and realise we are cbetting a high % of flops they may start adjusting and check/raising us with weak draws/pairs/overs or calling our cbets and donking a heap of turns because our range is so weak. however if we check behind this potentially allows our perceived range to strengthen (if an ace or king or whatever falls), giving us a better expectation when we are bluffing (as more of villains range has to fold), but also allows us to guage villains range better because we've got three pieces of information to use (preflop, flop, turn) and thus can make a more accurate estimate of villain's range as a result. this is pretty much what donkafelts said i guess. i thought i had a relevant point to make for a second there.