hi! can anyone tell me if they notice any difference between iso500 and iso900 in terms of performance, ie power and control? since iso900 is made of high modulus graphite compared to regular graphite in iso500, is it safe to assume that iso900 is a lot less likely to break during racquet clashes(assuming same string tensions)? is it worth it to spend an extra 50$ to buy iso900 instead of iso500?
Quite surprise to me when you talked about ISO-500 and ISO-900 since these two models already discontinued from YONEX production lines. However, from what I feel when I tried these two racquets, ISO-900 was much better in term of flexibility and control.
