Building the pot on the turn

Wynn 3/5 no max 9 handed NL. I have ~800. Probably about the median stack for the table. Villain has 2-3k. Pretty nice table with only a couple of tricky players. I have KQ on the BB there are several limpers including villain on the button. SB folds and I check through. Pot is ~25 Flop comes J92 - two suited. It's checked to villain who is fairly tight but certainly capable of a move (one of the tricky players). Villain pots it. None of the other players are dangerous so I make it 75 (should have been 100 but I digress) thinking I have a pretty good chance of taking it down right there and plenty of outs otherwise. Folded to the villain who thinks for quite a while and then calls.

Turn is an unsuited T, giving me the nut straight. Pot is now 175. So, should I lead out with a 50-75 "I'm afraid of the straight" probe bet or a 125-150 "I think my Jack is still good" bet? Villain raised me off of a somewhat smaller pot about an hour before when I bluffed 2/3 the pot.

A smaller bet might well induce a bluff but the larger bet makes my doubling up much more likely if he has a decent hand.

Does the smaller bet look too suspicious after the check raise? Alternatively, might this be a good time to overbet the pot?