Hey, after I raised Pot on the turn, the only sizing I would use on the River is Pot.
The benefit of potting the river will also be that you don't have to worry too much about being raised on the river as a bluff.
Of course, he can still have JT on this river, but you don't block any pairs on the turn, so he can still have sets and 2 pairs +backup (flush draw, gutshot), and he can still have T7 with no backup, a hand that won't get the money in on the turn, because it will get freerolled often, but will have a hard time on the river vs a pot-sized bet.

Very interesting.
I think checking is fine, because he bet pot on turn and call big raise, usually peoples doesnt do that with set or 2p+draw very often, usually it is straight or draw, so it is hard to imagine what hand he will call on the river and I dont think that people overcalling here too frequently vs large sizing. Blocking Q is not terrible, butttt im not sure. Probably the worst hand I would bet here will be TT7X
Vs some passive guys I feels like it is ok to bet just 30-50% ( it is some sort of exploit vs really weak players) , and do same with some JT with 1 or 2 pairs or set.
I dont think that you should have here only potsize sizing, because a lot of your JT will block part of his calling range, also here not a lot of 2nd -4th nuts that your 1st nut can dominate and your bluffs here is not only hands with a lot of blockers like TT9.

But also I think a lot of players would like to donk their 1st nuts on the river.

So if in moment I'm not sure, I would like to just check