I had a someone help me dial some settings in to slow the machine down slightly and get a little more used to the pressure of the pedal. After that was done, I installed the box speed reducer. I had a few problems, but easily remedied (table too too low, light getting in the way). Once the new belt was installed i gave it a test run. I thought there would be a slight improvement on speed.... I was wrong. It was like night and day. Even on the fastest setting, I could have control over speed. Thanks forthe advice Wiz!