When and When Not to Checkraise Bluff

[toss]

Tight Ass 5/10 Table Where Everyone Takes Turn Stealing the Blinds Hold'em Poker (7 Handed)

UTG raises (seems TAG so maybe ATs+, 88/99+, KJs+, KQo+), folded to me on the BB with red 77 and I call.

Flop comes AT2r. Villain bets, I checkraise because theres like some hands where he doesn't have an Ace. He insta-calls.

Turn is low card blank. I bet again and he insta raises. Fold.

So is this the kinda flop we want to be checkraising?