HOW TO CUT TENNIS BALLS: electric carving knife method to cut tennis balls more safely/accurately 

This is funny because this is what I was going to do and then I found this! Great minds think alike. I'm going to watch this to get your experienced ideas that might save me time.

Makes good sense. Thanks for the demo.

Thanks ! I have an electric carving knife for upholstery!! And uI do plumbing, so telling tape! So walker legs, here we come!