Get one of each!

Im meticulous about correction, and honestly kind of anal about it so I have 2 PC's, a Makita rotary, and a UDM and looking into a Cyclo and Flex. I have'nt tried the Flex or Cyclo yet, but I do know after much time and research that depending on the job, I prefer one tool over another. For deep correction, Im always picking up the rotary. Regardless, it sound like that PC needs replacing.