Question about non nut flushes

[Bandgeek]

I've been reading up on Omaha and noticed that most authors love hands like 89TJds and 9TJQds and it makes alot of sense.

However I'm wondering how hard you can push with a Jack or Ten high flush?
Other things I've read say in Omaha you need to either have or be drawing to the stone cold nuts to call or make pot sized bets.
So are you just looking for wraparound straight draws or made straights with these hands or do you take the flushes to the river as well and just pay off the guy who has Ax of the same suit?