Lewm,
Everything was the same, same cartridge, same electronics, only difference was changing from TT (a) to TT (b) and we did that as a blind test, meaning a friend was doing the changing and I did not know which one I was listening to. So, yes the G is ever so slightly better sounding than a MKII that has had the full KAB mods. Also, Kevin did the mods if that matters. The difference between the two was subtle, but enough that I was able to consistently hear the change every time with no wrong outcomes.