Full Tilt Poker $22 + $1 Heads Up Pot Limit 5 Card Draw Tournament - t40/t80 Blinds - 2 players
The Official 2+2 Hand Converter By DeucesCracked Poker Videos

BTN/SB: t1000 12.50 BBs
Hero (BB): t2000 25 BBs

Pre Draw: (t120) Hero is BB with 3 3 9 9 5
BTN/SB raises to t160, Hero raises to t480, BTN/SB calls t320

First Draw: (t960) (2 players)
Hero draws 1, BTN/SB draws 3
Hand: 3 3 K 9 9
Hero checks, BTN/SB bets t520 all in, Hero calls t520

Villain seems to have a relatively sound game wrt the basics, altho he tends to pull off some bad fancy moves occasionally, e.g. he requested time and 3bet pot w AAxxx drawing 3, and later he min3bet QQxxx, and potted flop unimproved. He drew 4 or 5 a few times when I limped to him in the BB, and he sometimes limped and drew 3 to ace and a face card.

When he minraises, flats my 3bet and draws 3 I am quite sure that he has a pair. However, he has 29% equity pre-draw. If he's holding 88xxx or lower that equity is prob closer to 20% coz he can make a worse 2pair and thus he might pick up some reverse IO, but if he has TTxxx or better I'm actually giving him implied odds by stacking off on any flop. Do I have to lose money vs a reasonably good player playing small 2pairs at shallow stacks or can I do something else here

This is a really tough spot, and the reason I hate small 2 pair. It's generally a hand I want to play a small pot with, so I tend to check back rather than bet for value in cash games. I don't play HUSNGs, but this is clearly a judgment call and it could go either way. Maybe raise larger preflop to cut down his implied odds? You need to be pretty certain you have the best hand pre here.

Sounds like you have played me and my usual mindgames. Since this isnt me I would presume it is slightly in the way I play and you are DEAD here. If villain has any awareness at all he should push queens up and better for value. I suspect he made QQQ though.

I'm interested in how you came up w this

Jacks up is the mean two pair. So I usually go with queens up as valuerange against an unknown that checks 1-card draws to me.

I actually wrote JJJ first but then changed it to QQQ. "Knew" he had one of those hands.

I don't think this should be a tough fold, for two reasons.

One is that he has to betting a losing hand almost 3x as often as a winning hand for you to break even by calling. His equity range alone against your unimproved 2pr is 30%, which is a ratio of only 2.3 losers for each winner. It's not impossible to conceive of scenarios where villain would be three times as likely to bet a loser as a winner, but he'd have to be a very idiosyncratic sort of player.

The other is that your maxi 3-bet pre marks your for 2pr or trips HU against a player who doesn't fold pairs to 3-bets. Even though he plays crazy, he's probably not crazy enough to risk going busto on a low-probability bluff when he could just safely check back. He's betting because he thinks he can beat most of your repped range.