villain is 35/21 over 100 hands. His flop agg factor is 2.8, so not high. I've seen him make plays that didn't seem consistent with anything, but haven't seen a hand showdown yet.

Full Tilt Poker, $1/$2 NL Hold'em Cash Game, 4 Players
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SB: $398.50
BB: $170.60
UTG: $40
Hero (BTN): $373

UTG posts $2
Pre-Flop: [5d] dealt to Hero (BTN)
UTG checks, Hero raises to $10, SB folds, BB calls $8, UTG folds

Flop: ($24) [2d][3s] (2 Players)
BB checks, Hero bets $16, BB raises to $160.60 and is All-In

Best case is 12 clean outs, worst is 3 clean outs, so ditch it?

Yes...let him have it.

How can you possibly only have 3 clean outs?

Roy, BBB, I agree about the ranges, but this guy wasn't ABC so could have more stuff here. I thought at the time it was a fold, but I was surprised by what I got out of pokerstove which got me posting.

He showed [3d].

Heh. I did include [3d] in his range but Q3 is pretty out there. I think a player like this is probably on a big draw here more often than not so the fold is pretty good. He probably slowplays a set or plays it more conventionally. You are in worse shape against this hand or other big diamond draws than you are against top set.