I have a Rega P3 with Groove Tracer reference sub platter sapphire, and groove tracer counter weight, tonearm has been rewired with Incognito wire, has the Pete Riggle vtaf, and a Grado Sonata 1. Herbie's Way Excellent Turntable Mat Low hours on the updates.Sold This is one sweet deal, Sold is the retail of the cartridge. Needs new belt.