When I first started playing, not knowing any better, I just ordered some Onix Pure 2 outdoor balls. Then as I started playing several of the frequent players at my courts pointed out that they aren't approved for tournament play and that I needed to get the Franklin X-40s as they were the only ones that were. Now I'm not sure if that's absolutely true or not but I could definitely feel a difference in the Franklin ball and felt it best go ahead and make the move so that when I play with anyone else, I would already be used to how the ball feels. I've been very happy with these balls and feel confident in their flight. The Onix Pure 2s and most of the cheep random balls seem to be jumpier and very inconsistent compared to the Franklin X-40s.
Rating: [5 of 5 Stars!]