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Discraft Flick EliteZ 171g
Discraft Predator Flx 172g (nothing damages this thing, rocks no problem)
Predator also has the flatest top to a disc I've ever seen.
For Innova Firebird is the way to go, I throw one when I was just starting overhand shots and it was great, but I'm a Discraft guy.
Basically a good flat, low profile disc (like the Flick), also a trianglar shaped rim is nice (why the Firebird is nice).
And OVERSTABLE to hold the glide (unless you want it to go straight) then I use like my Xpress for those short straight ones.
Domey discs are EVIL for any overhand shots.
and anything else in my bag if need be.