I continued barrelling because i felt i had decent blockers to his continuing range (spades, pair blocker, cards around the K). Maybe the K is a better card for SB's range then i thought? Not to mention the flop play, maybe i should never lead into so many people for small size?

Hand History driven straight to this forum with DriveHUD Poker HUD and Database Software

PL Omaha 0.05(BB)
HERO ($5.13) [VPIP: 20.1% | PFR: 16.8% | AGG: 35% | Flop Agg: 40.9% | Turn Agg: 33.1% | 3-Bet: 11.1% | 4-Bet: 11.9% | Cold Call: 8.2% | Hands: 24172]
UTG ($3.89) [VPIP: 50% | PFR: 3.1% | AGG: 44.2% | Hands: 32]
HJ ($2.34) [VPIP: 46.2% | PFR: 0% | AGG: 16.7% | Flop Agg: 0% | Turn Agg: 25% | 3-Bet: 0% | 4-Bet: 0% | Cold Call: 44.4% | Hands: 13]
CO ($4.73) [VPIP: 57.9% | PFR: 0% | AGG: 44.4% | Flop Agg: 36.8% | Turn Agg: 43.8% | 3-Bet: 0% | 4-Bet: 0% | Cold Call: 45.5% | Hands: 38]
BTN ($9.60) [VPIP: 26.2% | PFR: 14.3% | AGG: 25% | Hands: 42]
SB ($4.04) [VPIP: 45.7% | PFR: 34.3% | AGG: 20.8% | Flop Agg: 21.1% | Turn Agg: 25% | 3-Bet: 0% | 4-Bet: 50% | Hands: 35]

Dealt to Hero: J 8 7 Q

UTG Folds, HJ Calls $0.05, CO Calls $0.05, BTN Folds, SB Raises To $0.25, HERO Calls $0.20, HJ Calls $0.20, CO Calls $0.20

Hero SPR on Flop: [2.09 effective]
Flop ($1): 9 4 7
SB Checks, HERO Bets $0.33 (Rem. Stack: $4.55), HJ Folds, CO Folds, SB Calls $0.33 (Rem. Stack: $3.46)

Turn ($1.66): 9 4 7 K
SB Checks, HERO Bets $0.94 (Rem. Stack: $3.61), SB Raises To $3.46 (allin), HERO Folds

Flop sizing seems terrible. 2 players have position on you on a draw-heavy board, how does a small bet help you or generate enough value from the top of your range?

Turn, even though your range is not strong, sb doesn't have to have much either. So having arrived in this weird spot we can mix a bit. But awkward stack sizes should lead us to choose between a line that maximizes fold equity on turn or river, as we aren't deep enough for 2 full bets. Also since our flop range is a bit weak, sb can check-raise light. And sb will have a ton of drawing handa fhat always see river vs. medium and small bets.

So i think hero should only bet large (70% or more) if he bets turn, and the actual sizing was not a good choice. Bet/fold lines are a disaster.

Turn check is cleaner and probably better.

If i had bet turn larger and then he raised you would call it off?

Yes.

And actually with the sizing you chose we might still want to call it off.

3b pre. I think it's simpler to bet bigger on flop unless you're IP, but I suppose with your hand it's probably not the worst.

I'd probably just pot it in on the turn.