I don't see much difference. But it's the combo of balls + surface that matters. Those HEAD balls plays tricks on people. Sometimes they get worn superfast like in Paris and then it looks slow (like ass) and then they switch to new balls and it suddenly looks medium again. They need to fix the balls + surface combo so it never again can be like Paris. If they got a rough surface that fluffs up the balls then they need different balls and so on
That will be the last victory of Rafa for quite some time.. With his joke mentality and pathetic game, I hope the disgusting player loses every single match next season. He's disgraceful. He should just retire. He's a joke.