Lyra Lambda Atlas/Etna


i currently play multiple cartridges; within my system, my go-to cartridge (vs LPS, XV1S) ends up being my Transfiguration Proteus which has a fair amount of life left.  I am debating sitting tight or can anyone please provide insight if they have ever compared a Proteus to the Etna or Etna Lambda?  I recognize Atlas is in a different swim lane, but any comparisons there?  I am currently running an ARC Ref 3SE phono- Thanks 

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