$5 on turn, fold to the raise imo.

(1) 30 hands isn't enough to get a solid read. Add to the fact that these stats tell nothing about the way in which villain thinks about poker, plays postflop, or views you, and it's hard to make such exact assumptions about his ranges.

Some villains might think that on the turn 77-99 is worth a value c/r. Most villain's realize that is not the case facing an UTG opening range. I think more than likely this villain is off the latter that isn't loving getting 77-99 allin on the turn, and will likely opt to c/c or c/f (should probably be a c/f barring reads on you).

(2) Even over these 30 hands, villain has shown to be on the tighter side of things. Very much so in fact. 10/7 is tight at FR, it's a fucking nitty nit at 6m. So why do you believe that a nit is c/raising the turn light, or stacking off light for that matter?

(3) I said bet $5 on the turn because yes you are likely to be ahead on the turn when he checks. Villain probably 3bets KK/AA, maybe QQ. Without more stats/reads, I don't know what to make of JJ, but I would say not. So when he c/c flop, checks turn, you are looking at a likely range of {33,66-JJ} with a few combos of 44/55 tossed in. Although for him to c/c an UTG opens multiway cbet here with 44/55 is I believe bad. He also might have AK/AQ some % of the time, but probably not likely at all (which would also be bad).

Against that range, we can surely bet the turn for value. I can see the merits of a small bet, which is to try to get value from the 77-99 hands that you are ahead of, which might not like calling 2 or more streets. However, I like making it a bit bigger to setup the river pot size to stack size a bit better.

(4) When he check/raises, I find it hard to believe he is doing it with 77-99 (fwiw, he probably had 77-99 just because you are showing the hand.. Got a feeling this one turned out good). If he is that's absolutely turning his hand into a bluff. And not a very good one because (1) you appear to assume his range isn't that strong, and (2) your range is strong.

Which ties into my next point. From his point of view, if he's a decent thinking player that is (doubt he is), your range is very strong. You raised UTG, cbet into 2 villains, and are now betting a blank turn. Even though your betsizing is smallish on the turn, which could be a sign of weakness, your line overall is not. Which without a solid betsizing tell, he can't tell if you are betting small on the turn because you have a marginal hand, or are betting small just because you have a monster and want to keep him in. So the sizing can be read both ways (if he's even thinking).

So since you are repping a pretty credible strong range of sets + overpairs, we have to think he isn't doing this light on the turn. Which 77-99 would fair very poorly against your range. So given he now check/raises the turn, I assume his range is much stronger than yours, and fold.

So yeah.. In conclusion: Turn raises are srs bizness.