String diameter verification (aka SDV) - Japan only issue Yonex BG66 Maxima

Good news here since it's suppose to have been their primo stuff... unfortunately I have discovered not all strings with a declaration of  Made in Japan  to be up to spec - will reveal in the following months.

BG66 Maxima is currently no longer in production. If you are lucky enough to locate any, they would cost an arm&leg!