I read this thread with interest, and decided for the relatively small cost (less than 1 SR fuse) I could give this a try. Sheets turned up a while ago, but only just got round to applying it. Started off by putting a thick strip on the bottom of the chassis of amps, innuos zenith, PSM 156, Phoenix USB and Dave and had a listen.
Yep, definite improvement. Sounds less hifi and more realistic, more musical. Maybe better sound stage too. Highly recommended for the price