4am on a Friday night. This game has gone from tightish when I sat down (mucked overpairs face up to 1 bet) it has changed into a LAGfest, with lots of chips flying around and people getting looked up pretty light.
Villain ($630) is a diminutive late twenties asian male who I've played with ~3 times before. He can play a wide range IP. His true LAG style comes more into play postflop, where he will continue with a large percentage of his hands often double and triple barrelling. He doubled up from a dwindled $400 buyin an orbit ago. He raised limpers OTB with 46o, got 4 calls, checked back a AJ4r, doubled through an ATo on the 6 turn card. He sat down 45 mins ago.
Hero ($750) is a mid twenties white male wearing hoodie and sometimes headphones. Villain has only played 1/2 with me, so his view of me should be a little tighter than I usually am, as, at least in my games, you have to give the average villain more credit at 1/2. I've opened 3-4 times since he's been sitting, showing down only a failed cbet/2barrel with ace high.
Hero is in UTG + 1 9 handed dealt A

Q
1 fold
Hero raises to $20 (table std is 20-25, mine is 20)
2 folds
Villain raises to $40
4 folds
Hero calls $20
I definitely think I'm ahead of his minraising range, but I'd like to conceal the strength of my hand vs this villain who will barrel a ton of flops HU. I am open to a raise of $100 or so, but I think a properly sized 4bet here is letting this particular villain off the hook with the top of our range.
Flop A

7

4
Hero bets $40
Villain raises to $80
I chose to lead out because I think a c/c on this board is just way too obv and c/r doesn't accomplish much. If there were even one draw I might do something differently but I think a weak bet would likely induce from villain and hopefully disguises my hand even further.
Hero ???