Villain seems kinda lag at 26/15 over 46 hands. If it matters, I am around 16/7 and almost always cbet heads up.

My thinking was that I beat most of a his range on the flop+turn which I estimated to be suited cards like Kx where x<J and 98/87. Pocket pairs and QJ seemed unlikely given his PFR stats but not impossible since the stats are on 46 hands. So I bet...

Surprise! He check/raises me on the turn! But he was lag so I decided to call to get more action from hands I beat (Kx and maybe a draw). At the time I put less weight on 7x even though it's what he's repping. I figured he would fold worse hands if I pushed over his check/raise but looking back that seems doubtful given pot odds. Anyway I basically had to call the river when I called the turn.

Would you check behind the turn? As played, do you call, fold, or raise to the turn check/raise vs this type?

Party Poker No-Limit Hold'em, $ BB (10 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Button ($109.05)
SB ($56.20)
BB ($30.50)
UTG ($12.40)
UTG+1 ($30)
UTG+2 ($154.75)
MP1 ($64.70)
MP2 ($48.75)
Hero ($50.90)
CO ($81.25)

Preflop: Hero is MP3 with A, A. SB posts a blind of $0.25.
3 folds, MP1 calls $0.50, 1 fold, Hero raises to $2.5, 4 folds, MP1 calls $2.

Flop: ($5.75) K, 7, T (2 players)
MP1 checks, Hero bets $4, MP1 calls $4.

Turn: ($13.75) 7 (2 players)
MP1 checks, Hero bets $8, MP1 raises to $24, Hero calls $16.

River: ($61.75) Q (2 players)
MP1 all in, Hero calls $20.4

Final Pot: $99.55