Well, I have a '95 510e, 'hog with an Engleman Spruce top. As soon as the ES came out, had it modded by Taylor. Does that count? Because it was pre-NT, they kindly fashioned a pickup to go in the soundhole. Kind of a pre-cursor to the GO p'up in the GS Mini. Then, when they upgraded the ES, I had them do that too, along with a "tune up". She'll be 20 years old on 7/14/'15. Sounds awesome through my modded Super Champ X2, and plays great with Elixir Custom Lights. Never had a buzzing issue, either. Plus, I removed the 'guard from my GS Mini...piece of cake. Haven't done anything to my SB2-S Koa Ltd. except raise the p'ups height to get more tone.