Hi all, I've been making repairs to my Pickering M100A mono blackhead cartridge and am wondering what the purpose of the "damping "grease inside of the shell is. The original grease had become nearly hard and was removed during repairs. What will happen if I don't replace it with a thick grease, such as dialectric grease and what is the purpose of the grease in the first place? On another issue, With no record on the turntable and "A" side selected, the tonearm moves into position and when pushed forward does not spring back but stays where it should.with forward pressure removed. If you continue to push, it will eventually trip the reject. Doing the same test, again without the record, on the "B" side, the tonearm wants to move back toward you when my finger stops pushing. With a record playing on the "B" side and entering the end of record runout it will often skip back a bit into the program rather than continue on and reject the record. I can override the issue by increasing the tension on the B side tension spring but would rather understand why the tonearm skates back on one side and not the other. Dean