Hey pdhunter,
I am not 100% sure on this one, but I think that the WW Super brass is of lower quality then the regular Win brass. You usually see that Headstamp on the Win Super-X ammo - the grey box stuff, usually with that **** crimp on the neck that is a pain to get out. I find the brass to be softer and stretches more easily then the regular win brass. If you have some of it, then reload it, but watch for crushed shoulders, head seperation and other signs of junky brass.
Like I said, not 100% sure. If someone else knows more on this one, they would be better to ask. Good luck.