If the record is skipping then it is technically jumping the groove... The cartridge could look fine and still be suffering from suspension problems. The rubber inside can become hardened and this will prevent proper cantilever compliance which could theoretically cause the record to skip.
What I don't understand is how it would play old records correctly but not new ones....
Can you tell us exactly what you do to set the tracking force? I'm convinced if the stylus and cartridge are in good shape this can be the only cause...
Also out of interest, what's the name of the records you're having trouble with?
Lee

