I have had a 69924 for a couple of years that I plan to use for the first time in the near future.
Hs anyone ever heard of a DA polisher that vibrates badly without the backing plate attached.................. but, the vibration pretty much disappears with the backing plate attached?
I have replaced the OEM grease as shown in several You Tube Videos and the OEM backing plate hasbeenreplaed with one from Meguars.