Ok, now you're opening up another can. If you have the budget for a flightstick, then maybe you should get that, and leave the 4 way to the U360's. A flightstick with fire button(s) opens up a couple more games that can be played more faithfully... like Star Wars for example. Say, do they sell U360's with a fire button on top? (not a hack).
p.s. keep in mind the ergonomics of your panel versus you monitor. Having a big flight stick right smack in the middle may not be the best spot for it. Since it's a big panel, I imagine that's all ok, just don't forget to consider everything.