Originally Posted by
Scrape
Gear drive yes, but not a Rupes for me personally. I believe you are referring to the Millie LK900E. It rotates Clockwise vs Counterclockwise for the Flex. I know that the ergonomics on the Flex are better and the motor of the Millie is quieter. The Millie works ideally with their pads exclusively for ideal results. For me I need a wide range of pads as I may work on a boat, truck, trailer etc. The Flex XC 3401 is my weapon of choice and the price is a lot better you would imagine. Most pros use the Flex for a reason. 1. Brushless motor. 2. Reliable 3. Durable. The Porsche and BMW factories exclusively use Flex Polishers when doing minor correction.
Prices are very similar for both units as well but pad prices is where the difference is.
Like I said before, your money your choice. It's like anything in this world.