I am kind of annoyed at my fold in a way,
Nah, I like it.. All that action makes me believe all the big cards are in peoples hands and a wrap hand like that is only good when you can do something postflop..
A jack high flush against multiple players is likely worth zero.. Maybe 10-20%. Your King high flush is probably worth about 60-75% of value.. so you can probably treat that like a hand that has a one-way flush draw.. I dont think you'd consider playing a one-way flush wrapish hand for all-in preflop.
Thread HIJack: Do they have range calculators for Omaha like they do for Holdem? That like %chance of my flush being good actually sounds like an interesting idea to further research..