[bung]

I think b/folding is best here. By checking you may induce a bluff and fold the best hand, unless you plan to call. By betting you can get value from KxQs and protect against one card FD. We're usually ahead of his pre-flop CCing range, and flop raise/calling range here, ex.Kx, bluff, and behind a flsh draw /set. A set shvs flp as do most FDs.