VPI HW-19 Springs

My MkIII had two black and two silver springs, all with black plastic top caps with three silver metal hemispheres on top (these made sliding the chassis easier for centering in the base). The different colored pairs of springs were supposed to be placed catercorner from each other, but I've forgotten which color was supposed to be where - I long since replaced the springs with NavCom Silencers, and think that on the whole they provide a more stable soundstage and more accurate sound. Hope this helps.

Mark

So far everyone has been a big help and with rearranging today got the plinth much better balanced swapping a couple of spings out.

I remember VPI telling me that the two sets of springs were wound opposite each other to prevent the plinth from creeping. I too preferred the sound with the Navcom pucks but I placed the black Delrin springtops with the three balls on top so the plinth rides on those. Allows easy centering.

I had wondered about the two different color springs used. Now I know that is normal! One spring had collapsed over time by about 1/8 inch. Not normal. Last weekend I replaced my Mk IV springs with an Isolation Upgrade Kit from elusive Disc.
Isolation Upgrade Kit
My rig is on a cone supported rack with cone supported shelves and sits on concrete (cones through the carpet). So footfalls are a non-issue. A Dynavector XX2 Mk2 sits on an original JMW 10 arm with dropped weight. Enough with the details, what did it do for the sound? It absolutely transformed it. Dynamics, both micro and macro, jump off the disc. Focus is vastly improved. I'm sure other things good are happening that I can't put into words. The music takes me away and the gear disappears. At the price it is a no brainer. As always, YMMV.