Do what @buellrider97 suggested.
I have an RP-1 with a Rega P6 and Ania Pro Cart. I called up Rogue and got the dip settings they suggested to match the Ania (there was a chart but I wanted to make sure). Upgraded the RP-1 tubes to Matched Mullards from Andy's tube services. Later a tried a MOON 110LP from my LD. After as critical a listening session as my old ass ears could pull off , The MOON sounded no better than the RP-1. So back to the LD it went.