The game has been playing 3-handed for at least a couple hours with the BB on the Btn. Villain is one of the biggest winners in the history of online poker but mostly in lowball. We've had a super aggro dynamic with tons of bluffraising, 3 and 4B bluffing dry and lockdown flops, etc. I'd stacked villain about 4 times for 5K each in the past 90 minutes and he bluffed off his stack to me two of those times. I just doubled him up in a 4B pot though. Eff. Stacks ~15K
SB folds I raise MB to 260 w/J

Tx8

7h

Villain calls BB. Flop J

7

2

I chk. Villain bets 400 I make it 1400 he 3000. I?
I checked flop because I'd started to C/F a decent amount due to villain's super high raising frequency and I wanted to let villain know he can't always take the pot after I check. He's seen me C/R once as PFR and then C/F a blank turn after my C/R got called.