Opinions for NL Holdem?

I've been playing NL Holdem for a good four years now or so, and I have a pretty good expected value and ROI. However, I am trying to increase these numbers even more, so I read guides for all levels just to pick up even more information that might help me. My style of play is to trap opponents by checking big hands on the flop such as sets, two pair, and flopped straights/flushes. However, what about hands where you raise preflop and catch top pair with top kicker? My instincts say to check them, and raise any bet as a tester bet. If I get a re-raise, I know I'm up against a strong hand such as a set, or two pair. If I get a flat-call, I am probably up against a draw, or a middle pair. Now if the turn comes up a dud for me, there is the possibility that they may have hit their draw or two pair. Based on the way I played the flop, there are two paths, either A) my opponent re-raised my test raise, and I called, or B) they flat called my raise on the flop. If I am in an "A" situation, I like to put in a decent bet as a tester, and fold to a raise, and probably lay down the second best hand. I feel that if I were to check here, I would be putting myself into a position that is extremely difficult to read, as they will almost certainly bet, whether they have a good hand or not. If I am in situation "B", I also like to put in that tester bet as opposed to checking for the same reason as situation "A". While I feel like this style is good, this can seem a little bit pricey for when I get re-raised and I am forced to fold. What are your opinions?