well, so I was hacking around and took out some footage that had been unlinked and all is well again.
Now FCPX was fine for several days with these files being unlinked but then yesterday started the beachball. So I guess something in there went south, weird.
Noah Thanks for looking into this! Sorry for the fire drill.
This is the first time in 2 years Ive had FCPX turn unresponsive (get a spinning beachball)