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.
Rpfef...I realize what they are designed for. Here is what is stated in the ad:

Big Tall Tenderfoot: Same as above except molded extra tall to lift components free of tall factory feet. Also great for turntables having severe footfall or other macro-vibrational issues. Superior upgrade for AR, Thorens, and VPI suspension springs.

Read the last sentence...
I have a pair of the Sims new in a blister pack if you are interested. It would take me a while to dig them out of whichever box I put them in when I moved out of my house in '08.