Haha, since its your theory, shouldn't you describe why you believe this?

But ok. Generally, I agree with you. Personally, as a big or small blind in the pot, I barely ever make a bet immediately on the flop, no matter what I hit. I check whether I hit or miss, largely since no one expects a blind to hit a hand (unless its all rags, where I'm more likely to bet with any pair, or on a complete bluff).

Its pretty unlikely with 4+ players in a hand that everyone will check at the flop. So in my blinds position, if I hit a big hand on the flop, I'm looking to check raise. Also, by checking immediately, you kind of put yourself in position to act last (if someone else bets). You can see who bets, how much they bet, who calls, who folds, and then make your determination of how to play from there.

The under the gun player is expected to have a strong hand, so if a good flop hits (especially with a draw), planning to check raise isn't a good idea, as a draw is likely to take a free card, in case you're trapping him. So the under the gun position is often the guy that's in the position of betting first, which really serves the blinds well, as they are then last to act after the bet.