I have been a professional detailer at a Porsche dealer for over 14 years and in my opinion the XC 3401 VRG is the best polisher on the market for high volume facilities that demand flawless results. It’s rugged and reliable with simple switch and cord repairs being the only servicing required. The backing plate fits 6.5 inch pads perfectly, while the newer all plastic model has a smaller backing plate which I find odd. I hope this model is reintroduced! Rupes makes a fine polisher also but at a higher cost and consumes pads rapidly due to the more aggressive throw. Let’s hope it gets restocked.