In an effort to provide quality products for our customers, we made a change to our PRO 1200 Lift foot pedal because we found the other design eventually needed service. We felt this would be an upgrade, all around - it's a simpler foot pedal doing the same function, and - since we tested them beforehand and now have been using them for less than a year - we've found considerable improvement in customer satisfaction. Going forward we'll be using it with our air powered lifts. We invested more money to upgrade the foot pedal, but we believe it is worth it. Of course, we always want to provide our customers a trouble-free experience.