Hello all, I have a sick 70s creamy white MD421 which seems to have the common problem of having an impact transfered to the cartridge and now sounds honky. Does anyone know if it is possible at all for anyone to repair these? My local distributor had a listen to it and pretty much said yep, it's broken, to repair will cost significantly more than I can get one new elsewhere, plus I will basically end up with the vintage case over a new MD421 guts. Is it the case that earlier MD421s were unrepairable / disposable once in need of any repair? Anyone had any experience with this?