Only 50 hands or so on villain, but by the looks of it he's a regular (several tables and reg-like pre-flop stats). This is an ante table and he pots it on the BTN, which results into post-flop SPR of ~7. Not sure if that steal size narrows/strengthens his range. In general I see a decent chunk of regulars auto-pot it pre-flop from any position. Also, or maybe especially, on ante tables. Nevertheless I think the defend is standard.

On the flop I basically auto c/c and don't even consider another line (obviously if villain would be opening from early position, or c-bet with a low frequency, I would be more inclined to donk). On the turn (SPR<3) I'm pretty much clueless. Once he bets I don't think he'll fold if I get it in, but I also don't think I do well against his b/stack-off range. Yet it feels like I can be taken advantage off very easily if I c/c otf and then c/f ott. I'm thinking maybe my c/c otf turns my hand pretty face-up (since I don't c/r while I can commit a significant part of my stack at a semi-lowish SPR). So yeah I guess I'm lacking a solid and comprehensive post-flop game plan here. Who can help me out? All thoughts appreciated!