slaw
When an off-center lp rotates, as the cartridge sees it in real time there’s a slight speed offset, IMO. Therefore any cause of speed irregularity could possibly be corrected by a device such as the Eagle/Roadrunner that constantly monitors speed at every rotation ...The Eagle/Roadrunner works by monitoring platter speed, so it will be of no help with an LP that has an off-center hole. That’s because the LP with off-center hole can’t affect platter speed, but only the effective speed of the phono cartridge as it tracks the eccentric disc.