One of the reasons I never started using the GR33 years back when I had acquired it was the need to MOUNT the GK pickup on the body of the guitar. None of my guitars were going to be getting a pickup screwed, glued or taped onto them.
I had eventually picked up some instruments where I did not mind doing that kind of stuff but since the GODIN has the 13 pin as does the Brian Moore, the GK pickup was never taken out of the package. I never believed it would replace any of the guitars but that it could add a reasonable collection of options regarding sounds. Also, both of them track extremely well with the GR33. I am again, quite happy, playing them today as 7-8 years ago.
By the way, Brihar…I was introduced to Allan Holdsworth by a girl at work back in 1986. I was hooked by his style and sound. I really enjoy that stuff.