So I finally gave in to all the hype around the Rupes polisher and listed my Flex on ebay in anticipation of my purchase from Phil. I am likely going with the LHR15, since it is more than sufficient for a hobbyist such as myself. 2 Questions. 1. I used 6.5 DD pads on the Flex. Will those work with the LHR15? Should I suck it up and go to the LHR21? 2. Has anyone used the Rupes pads? Is there a noticeable difference between them and DD on the machine? Any pad recs? I attribute most of this decision to the praise from the pros on this forum. I hope I am making the right move. There was some discouraging post on detailingworlduk which held the flex as the winner. I think for my light correction needs this should yield the shiniest results. Some reasurance would be welcome from those who have made the switch.