I keep a Joyride shell and the original white ghost shell on each character and swap all my others over when I switch characters, it just means I always have a placeholder spot for ghosts(It also means I know which character I was using cos he will have max light and all the weapons/ghost, while the other 2 have lower light with that ghost equipped.), I also use the class specific weapons the same way.(seeing as they dont work on the other characters anyways.