I know there is a lot of hate around here for FLX plastic, but if you want an all discraft bag, give the FLX challenger a try. They vary somewhat in stability, but if the ones that I have are any indication, try picking up a sky blue one in the 173-175 range. That one flies like my pro D challengers did, and the plastic is very tough. If you don't mind the feeling of FLX plastic, go for it! Mine almost felt like normal ESP anyway. Not really floppy at all.