Uh, because Nadal doesn't use Standard RPM Blast? it only comesi n 16 and 17 gauge, and he'd be using 15L, so therefore they'd label it as specifically made for him
Ah ok, i see.
I still don't get why they don't print "RPM Blast Nadal" or something on it then.
But you may be right though.
But you think that his change of playing style (less spin, more power) is based on new strings? They advertise Blast for increasing spin...