I recall back when MC was touting the Townshend springs but some here were concerned about the price. I, and others, commented on how good the IsoAcoustic devices worked for ourselves and it was then that he went into overdrive with the Nobsound springs citing them as the alternative to the Townshends if cost were a factor and to ignore the offerings from IsoAcoustic.
I found that more than a bit strange.
All the best,
Nonoise