Since purchasing my Swingball Pro
Since purchasing my Swingball Pro set during the summer, I have now been through no fewer than 4 replacement balls and eventually I just resorted to drilling holes in old tennis balls and inserting the strings from the old Swingball to get a few more games out of them. Sadly, with a fairly strong 12 year old and myself playing (both of us tennis players), the hole in the ball splits quite quickly and the ball comes off. It's frustrating that they can't develop a more durable means of attaching the ball to the string. I have a good idea for doing it myself, but can't manufacture it. Anyway, unless there are small kids playing who don't hit too hard, don't expect these to last long at all. The ball that came with the original set lasted the longest - these replacements seem very weak in comparison.