I know they're two completely different machines but I was about to pull the trigger on a Rupes LHR-75e to go along with my LHR-21, and a few people suggested that I get a Flex 3401 so that I'd have the best of both worlds of forces rotation and long throw. I love my Bigfoot 21. It's buttery smooth and corrects paint very easily, but just can't fit in tight spots on my Mini Cooper. The roof around the sunroof and the bumpers are pretty tight and even with a 5" BP on the Rupes 21 I can't really do a good job on those areas. If I can buy just one, should I go with the Rupes Mini or Flex 3401? Thanks in advance.