On the flop I cbet less here, I'd probably make it '1565' (or an amount close to this), that way if villian calls and if I plan to double barrel, I don't have to double barrel quite as much on the turn.

Having said that, I think I fire 1 barrel on the flop and if Villian calls, then give up on the turn against a LAG. Saving valuable chips. You've fired 13200 chips into the pot and only have pocket 7's…. vs a LAG……..  1200 Preflop + 1565 as a cbet on the flop and if he still wants to call, I put the gun back in the holster and save some chips, having put only 2765 into the pot instead of 13200 (20% of your stack).

I hate giving up pots, but 77 isn't a hand to bring to war vs a LAG in this spot.

I appreciate what you're trying to rep here (AQ etc), but make a note and play the hand the same way when you do have AQ etc…  

Question one: How is everyone so deep at 300/600? Is it FTOPS?

Question two: What's your table image?

Im going to be in the minority here and say if our image is decent, stop after the second barrell. Villain is obv fishy so he probably doesn't have an Ace. Also, the villain is fishy so he probably needs two barrells laydown a hand. Think the flop bets size is fine, and i'd make the turn bet even more so I'm comfortable giving up if called or raised.

If we are playing laggy also, I'd prolly ck/give up.

Against opponents like this, I am much more inclined to chk/fld. I guess c-betting the flop is fine, but I definitely give up when called. Those types of players dont like folding, he probably calls you down with a queen, even if you triple barrel. So, I think you need to adjust to those tendencies. Although its sometimes hard to do, I try to avoid bluffing those spewy guys, and when I hit, they happily stack of with middle pair: Fastplay your big hands and dont spew into the station.

I dont mind a cbet on the flop, but 100% got to shut it down after he calls. Even though he is loose, his range can easily crush yours with a weak ace or any Qx. Dont bleed chips.