My Mute Noodle just popped through the door. I opened the packaging, glanced at the 'how to fit' illustration on the back of the pack, and fitted it to my PJ Player Mustang.
I'm very impressed, it provides exactly the amount (or rather lack) of sustain I was hoping for. Also it's dead easy to put on and take off in seconds, and looks better than a ratty bit of kitchen sponge.
Recommended.