Hi guys, I posted this in the MTT forum, which is obviously where it belongs, but no one has responded in about 12 hours, so I thought I'd ask for thoughts from my friends in the STT forum:

Home game - 28 players, $200 buy-in, top 4 places pay
Starting stacks: 3000 chips
First level - blinds 25/25
Hero's in the small blind

Relevant stacks and reads:
UTG: very aggressive, plays a lot of hands and bets most flops he plays. Hasn't shown down anything. Big stack at the table - probably around 4500 chips
Hero (SB): tight, with ~2800 chips

UTG calls 25
Hero checks in the SB with 10h6h
BB checks

Flop (pot: 75) 10c 6s 8c
Hero: bets 75, BB: folds, UTG: raises to 225, Hero: calls (I actually put UTG on a set at this point, because of the limp preflop and then raise on the flop)

Turn (pot: 525) 10c 6s 8c 3d
Hero: checks, UTG: bets 225, Hero: calls (the 225 bet confused me - he made this type of weak bet on a few hands - I was still afraid of a set here, but looking back I'm thinking I should have raised here?)

River (pot: 975) 10c 6s 8c 3d Kc
Hero: checks, UTG: bets 600, Hero:?

I'm looking for thoughts on all streets. I feel like I played this too passively, but at the time I really felt it was a wa/wb situation and I was trying to exercise pot control. I didn't think he had a flush draw (mainly, because I wouldn't have expected him to raise on the flop with the draw), but when he bet 600 on the river, it all of a sudden felt like either a bluff or a made flush.

Update: the more I look at this, the more it feels like a flush draw that I let him hit.

"Flop (pot: 75) 10c 6s 8c
Hero: bets 75, BB: folds, UTG: raises to 225, Hero: calls (I actually put UTG on a set at this point, because of the limp preflop and then raise on the flop)"

IMO this is where you made your mistake. You say he was very LAG, so I'm thinking he probably wouldn't just limp with 66 or 88 and surely not TT. I'd be more worried about some kind of T8s type of hand, but I think A10 is more likely.

I don't think you can worry about a set here with this draw-heavy of a board, meaning I don't think calling his re-raise is the right play. If he's drawing, then you're still letting him get there by not shoving or raising him again. He could easily be on any number of draws and semi-bluffing for a free card. He could even have a big PP (AA or KK) and think he's way ahead.

It might be spewish, but I probably just shove to his re-raise. That might be the problem posting this in the STT though. It's probably an obvious shove in a STT but maybe not so much in a MTT home game.