I don't know! Maybe because that's what I used when I played in the same century as Hank Aaron? We played a lot, in fact probably through the majority of daylight hours, over the weekend. Two-man baseball is a good deal of running. First session of the winter training program is tonight. We will see what kind of equipment they have and recommend. I was unable to master my dread of throwing a hard object at a minor, with the result that my pitching was wild. Perhaps a batting helmet will help with my aim. I did send him some lively grounders and he took one or two on the chops, but no long term damage. There was one YouTube video showing a guy being put out near first after having "squared up" toward second base, probably exceptional. Lots of great trick plays and charging incidents. I love baseball highlights on TV, it's just that they are so infrequent during games. Only one other tricky question came up: Is the catcher ever called the home base man?What's the kid doing with a wooden bat?