I will try to explain myself with my limited knowledge of English. Please don't taunt me
Although the GG is now to my liking, IMO there is still a big difference between both: The Cabon sound is much flatter, more precise and detailed. The problem is that he doesn´t forgive the bad recordings or sources. You can hear all defects and goodness of a recording. Sometimes this is good... or not.
The GG with the "fat bottomed girl" he has a nice bass and a midrange colored and more balanced between both, IMO this makes it less precise (a bit), but at the same time make it more musical and relaxed.
With my EL34 quads (JJ, Mullard and Tung-sol) I think that the GG sound is a disaster because you have U-shaped equalization and I don´t like this kind of sound.
IMO both amps have an opposite character and you can determine perfectly which of the two you are listening to. If you have an aggressive source (for example DAC with many treble or bad records), you probably would appreciate having the GG. For other hand if you prefer a sound as faithful as possible, the Carbon is your amplifier.
PD. I haven´t any "sacred cow" yet (007/009), I only have Lambda, 202 and 307.