mono or stereo cartridge when playing mono Lps??

I cannot imagine why stereo cart would be damaged by playing mono recording. Dedicated mono cart should sound better though due to less surface noise.

Don't worry be happy!
When stereo came in there were few stereo records, so the new stereo cartridges had to be backward compatible. In the half century since, the standards have remained the same but the technology of stylus manufacture has undergone a revolution. The current crop of styli play by tracking parts of the grove walls not previously accessible with the old round tips. Therefore the used records are likely to sound better with a modern stylus than with the original. If you are really a nut, then there are some modern dedicated mono models, but they are unnecessary. Do, however, be advised that it WILL RUIN A STEREO RECORD TO PLAY IT WITH A MONO STYLUS.

hey guys...thanks a bunch! my mono lesson for today is very much appreciated.