I didn't try them as a roller, but they just might be good.
A beat up LS is the best roller I've ever known. I used to like X XL's, but found them kinda unpredictable. That was a long time ago. Now I'm using a Pro TL with limited success. A sidewinder is too stable for my roll shot, believe it or not. There are quite a few discs... Flash, X XS, DX Leopard... that are just a little too stable. Best discraft roller for me is an X X-press. The one I have now is too light. Really flippy is right.
I heard alot of people say that about the Flash, but I love mine, I've only been playing for about 6 months and with my injuries I'm very inconsistent, but when I'm feelin good I can get that disc to do whatever I want it to, just like a Buzzz. I can rip it as hard as I can and flip it, but I can also rip it as hard as I can and keep it straight. Hell, I've even thrown it with a little hyzer and kept it on that line for 450, maybe I just can't throw for crap but that disc is the most versitile disc in my bag. Anybody else?