Hi Charlie; he's got something on there ... oddly decorated with 'GY(?)' at the top and 'GC' at the bottom ... early plug for Guitar Center :wink: but they do look like booties of some kind ... maybe damp any tendency for the p/u to vibrate?charliea said:In this clip Kottke appears to have used an early form of duct tape, or something, to avoid the hole chewing http://www.youtube.com/watch?v=0Gh-U9T7 ... re=related .