Heard the Cuarteto Casals in concert quite some time ago without lasting impressions .... probably will give their Beethoven a try as available on YT ....
If so I'm missing a statement from you towards "blacksaint" that your "bullshit" comment was not ment towards him as poster/forum member .... but I'm sure you will issue this in due course ....
Have the Naive edition and the sound is fine (to my ears) .... off course there is stiff competition, nevertheless these performances have their merits .... btw which recording(s) do you appreciate/value most .... ?