Dear @post2338 : Not at the same time but I heard in the same system the Lambda Etna and the Proteus and I don't know other gentlemans but overall the Proteus is better quality performer but when you are talking of these kind of quality sound levels is not something very easy a veredict.
Proteus is a today winner and a keeper cartridge and maybe you could find out second hand the special D version.
Anywa, a good re-tipper could change in specific the stylus tip on your sample with out touching any other cartridge part but maybe a check up on the cartridge suspension. Stay with and forgeret Lyra but it's your money and your choice.
Regards and enjoy the MUSIC NOT DISTORTIONS,
R.