yes. rega p7, a little less something bad, resulting in very slightly lower noise floor. not sure what it does, and i doubt i could ABX it, but it was no worse.
I recently replaced my Garrard 301's bearing with an Analogue Tube Audio Kokomo ceramic item and it's very good. The low bass is still typically prodigious, but the upper bass is definitely a bit tidier and it's running more quietly.