You can research the environmental trends at your limit to develop a better profile for unknowns. If you find out the environment stabs too much as IP, you can argue that checking flop w/ QQ makes more sense.

I prefer a c-bet here since you don't block his calling range and you don't want to give free equity to hands like AJ/AT which may check.

As played idm a jam, but another small raise probably puts him in a tougher position as as played he can likely fold his draws.