Bad Ideas explained: http://www.furaffinity.net/journal/321008/ Includes index.

A tap is a tap or a zap or both?

Instead of the fellow being suspended or tied down to the 'floor' above with his fellows hanging out to be used a speed-bag, there is a normal-looking speed-bag. But it's not normal. It's rigged with an array of sensors to pick up where it's hit and how hard. The information is transferred by wire (or wireless) to a rig that sends 'taps' or zap that the rig rigged around the fellow's fellows imparts. This setup means perhaps a bit more freedom of range for the gal practicing. And, being electrical signals, they can be recorded and played back later - for that fellow, or another. Perhaps with a video of the gal going at the speed-bag so he can... enjoy... seeing her work him over. Or someone might be mean and play a video that doesn't match the speed-bag recording. Oh, and signals can be... amplified.

This might also work as a way to have one gal go at two or more guys in an endurance contest. Like they'd have any choice to not endure it all.

You want me to watch you work out, but I have to dress special? Well, I suppose.