Interesting that he went with the LB6. That's what I had installed on my first Guild, the DV52. I took it to a luthier, said, "I want to put a pickup in", and that was the one he suggested.
The sound quality in the video clip didn't exactly blow me away. But then again, I don't think Doyle is going for the full-bodied warm acoustic sound, as it may not fit his style of playing.