BTN is extremely LAG/maniac. About 60% opening range from the BTN and fold to 3-bet is virtually non-existent. I don't have a lot of hands on him, but I have a note that he has a tendency to spaz randomly.

I have a fairly large range advantage here, but I don't have a lot of Jacks in the my range. However, since maniac should have a ton of crap in his range, I think he doesn't have a lot of trips. I go for a small bet here.

Against a min-raise, I could elect to 3-bet flop. However, I elect to call to keep his range wide, expecting him to bluff turn/river fairly often.

I block QT for the nuts heavily, and turn brings a lot of draws, so I think I have to call here.

Should I just jam? I think not. I will just isolate myself against the top of his range. I have seen people in my pool bet/folding here.

River is not super great for me, but my range is mostly pairs here and few hands with an Ace, and I'm basically pot committed, so I call. Again, I block QTs for the nuts and also block some QJ-type hands.

If he was bluffing with Ace-high, I can't really do much, but I do block some AQ.