Well, they are supposed to be similar. Mia Audina used to be sponsored by Yonex and is now sponsored by Winex and she uses a Ti Swing Power where she won the 2001 Dutch Open. Winex, in order to promote her win, now has two Limited Edition Ti Swing Power where Mia's signature is on the racquet with new graphics.
So that's it? There are no performance differences? What about price then? I've heard that Winex is less expensive.
I don't know about performance differences as I've never tried either racquets but there is definitely a price difference. A Yonex Ti SP is approx. CAD$215-220 whereas a Winex Ti SP is approx. CAD$130. Again, not sure of the feel of the Winex version compared to the Yonex version. The two versions of the Audina's Limited Edition is actually a SA and a SS
