Comments: I bought these balls when I was back in the US to take back to Europe with me because balls are much more expensive in Europe. I have used them on clay and they are worthless. I'm not sure how they play on hard courts but if you play on clay, I do not recommend these. They fly off the court and the ball is impossible to control if you like to play with some spin.
From: John, 4/13

Comments: I seem to be about the only one at my club who buys these balls. When I break them out, those playing with me always notice and wonder what they are. Having a different stamp on them not only keeps them from getting mixed up on adjacent courts, it makes play better. I have played for almost 60 years now and these are the best balls I have ever used on clay. They are worth ordering.
From: Robin, 11/12

Comments: I've played with these balls for a few years, and I love their consistency and durability. They're a little more firm than "regular Penn" and I think that's what I like so much about them. They've got a lot of life. I initially order them as the customer reviews were all very favorable. I haven't been disappointed. I recommend them highly.
From: Carol, 10/12