CaroRulz - Nice catch. Of course, Makiri's Official Site not a help. Nor is the WTA Tour site which has her still with the RDX 300. Tennis Warehouse no help either, nor was the Yonex site. So I wrote Yonex Customer Service an email and asked them. When I hear back will post their response. Am sure we will hear something soon from Yonex marketing, you don't pay Makiri "big bucks" and then not market what racquet she is using.