Jed, they sure pretty up the sound, don't they? I'd love to hear the "effects".
Dave, I guess the only problem that I see with that is that you have to re-tune and probably reset the bridge everytime you wish to install or remove it. I use the mute when I don't want to disturb anyone, but when they're not there I want to play unmuted. Rick's can be added or removed in no more than five seconds.