Alternative for VPI springs?


I have an HW19/IV with the standard spring suspension. I have often wondered if the performance could be improved with a non-spring suspension. It seems the favorite substitute is Sims Navcom Silencers, no longer available and rarely offered for sale used.
Is there anything I can actually get that does the job well?
rpfef
Sorbothane pucks work pretty well and VPI even used them instead of springs in their HW19 Jr. model.
Rpfef...the other VPI thread that you posted to, listed the Herbie's Big Tall Extra-Firm Tenderfeet for use on the HW-19 tables.

Here is the LINK

I have never tried these, but they are listed as replacements for the VPI in the ad on the link above.
The Herbie's Tenderfeet are meant to be placed under the entire unit, not in place of the suspension springs. But it is entirely possible that they would work well in that capacity also.
Thanks for the idea.