Originally Posted by vbranis
I can only speculate about Nadal's string...I did see it up close and it did have the hexagonal texture, so I can only assume it really is RPM Blast. I can't remember Zverev's gauge, like I said, if I didn't post it, I probably don't know.
It was the same string that Stosur is using?
Comparing the two we can see if Nadal is really playing with RPM Blast