Dear Braab8: Common sense tell us that line contact could has better quality performance, why I say " could "?
Well, the line contact stylus on cartridge needs a more precise cartridge set up: VTA/SRA, VTF, Azymuth, etc, etc, if not then we can aware of the line contact stylus shape advantages.
Now, if you read through the MM/MI thread you can see that several non line contact cartridges performs better that other line contact stylus shape cartridges even in the same model like in Ortofon M20FL Super ( line contact ) where almost all the owners with the FL and the E ( elipthical. ) version prefer this one .
I buy through garage-a-records the E version of the Azden that I try briefly and sounds good but not better than the VL version but I need more time ( 20 hours at least ) with the E one.
In the other side seems to me that the cartridge body is the same for all models.
I know that Dgob own both cartridges: the 50VL and the 50E, maybe he can comes and put additional " light " on the subject.
Regards and enjoy the music,
Raul.