Was doing some stippling last night and was thinking how many of us starting out have trouble with the 'constant speed' issue. My machine has the capability of, if I remove the plug for the foot pedal from the side of my machine, that I can push the stop/start button and it will automatically begin. I set the speed bar to a comfortable setting for me, and let her rip! I could then concentrate on where I was stippling without having to worry about speed. I was able to start and stop without too much trouble. One of those 'just by accident' discoveries!