$11 PLO mtt on FT. I have a big stack and am wondering if I should 3 bet and get it in here. Opener is not strong and play has obv been fairly weak at the table.

If I flat and someone somebody 4 bets behind do I fold or go with it? I have a feeling 3 bet and calling a 4 bet is the better play than flatting...thoughts?

Full Tilt Poker Game #17569615231: $10 + $1 Tournament (132137575), Table 18 - 80/160 - Pot Limit Omaha Hi - 13:08:28 ET - 2010/01/13
Seat 1: Gilmore Tuttle (16,520)
Seat 2: regroup_inc (11,942)
Seat 3: halo 68 (8,391)
Seat 4: xxx_cbm_xxx (4,385)
Seat 5: TwoBitPunk (5,376)
Seat 6: ganesch1 (3,980)
Seat 7: crusader57 (21,799)
Seat 8: mamourkat (4,710)
TwoBitPunk posts the small blind of 80
ganesch1 posts the big blind of 160
The button is in seat #4
*** HOLE CARDS ***
Dealt to Gilmore Tuttle [Ah Kd 9h Qd]
crusader57 folds
mamourkat raises to 560
onlyrobe sits down
onlyrobe adds 6,350
Gilmore Tuttle has 15 seconds left to act
Gilmore Tuttle ??????????