At the moment, I am using a Project RPM-4 that I bought secondhand in mint condition for a little over one hundred pounds. I also use an Ortofon OM30 cartridge that I absolutely love the sound of. My question is simple really, the turntable has its original felt mat that is badly faded so do I replace it with another coloured felt mat or do I replace it with a cork mat...? What will be the difference...? I guess for twenty quid the answer is to try it...!