Hi All. Long time no post. Anyhow, some advice please on above. I have been rarely using the above turntable/cartridge set up and am now looking to upgrade the cartridge as I want to rediscover my vinyl collection once more. I have been considering the Goldring 2100 or 2200. My question is this. Would this replacement be a sideways upgrade from the Ortofon 510 and should I consider spending more on the new cartridge to get a marked improvement? If so what would you recommend? I would like to have a fuller sound with more depth. Would I need to break into the realms of the moving coil breed of cartridge to achieve this? My Linn was properly serviced in 2004 and has on average been used for an hour or so once a month. So the current Ortofon 510 has not seen much action but I have recently replaced the stylus and "run it in", so there's a few quid to go towards my budget from it's sell second hand. Some advice please and thanks in advance