The Beat Buddy is a great practice tool. Very intuitive and easy to adjust. I never thought of adding a foot switch but that's a good addition. Sometimes I find a groove and let it run for 15 minutes or until my wife yells at me to stop.
Thanks Len. The foot switch and cable which can run $35 or more let you make changes on the fly without bending down to change settings on the pedal. Also lets you put in drum fills.