In the actual hand i thought it was a clear fold but i'm not used to PLO and much less to deep PLO so i'd like to know what you think about this spot.
The 3bettor is a pasive fish, 50/15, probably has AA most of the time, i didn't stab when he checks because i was scared of him c/shipping AA+something very often. MP is playing 43/23 with 12% 3bet, he's sitting in the 3 deep tables so might be a reg. I don't have many reads on him besides him 3betting preflop with AA86ss but flatting QJT8ds BBvsMP against 125bb fish... and not cbetting in 2-3 occasions with hands like AA on Q77 in 3bet pots.
Poker Stars $50.00 Pot Limit Omaha Hi - 6 players - View hand 1777548
DeucesCracked Poker Videos Hand History Converter
BTN: $106.79
SB: $96.60
BB: $138.77
Hero (UTG): $127.12
MP: $119.04
CO: $137.50
Pre Flop: ($0.75) Hero is UTG with Q
J
Q
J 
Hero raises to $2, MP calls $2, 2 folds, SB raises to $9, 1 fold, Hero calls $7, MP calls $7
Flop: ($27.50) 7
4
T
(3 players)
SB checks, Hero checks, MP bets $18.50, SB folds, Hero folds
Final Pot: $27.50
MP wins $26.84
(Rake: $0.66)
