The only thing I've noticed with Sonax PF, is that if you use a light cutting pad and a Flex, the product will turn nearly clear after 1-2 slow passes w/med-heavy pressure. With a Rupes and a polishing pad, this never seems to happen.
Does this mean that Sonax Perfect Finish is not suitable for use with a Rupes 15 or cannot be used to it's full potential with a Rupes?