Does yours have a clear coat? My understanding is that only very few were done with diamond coat, the majority are with lacquer.
I would advise caution on the non mylard areas of the playfield. On my BoP, I clean it using Novus 2 but it still manages to lift some of the paint here an there, especially the black for some reason. My playfield is somewhat planked though so I think that's why the paint lifts easier than maybe a clean example.