Adding any other footers under the existing ARC ones would not be a good idea as the sorbothane in the existing feet will fight the new footer. The one option that would work would be small sub based/platforms under each existing foot. Ron sells a set of these, cost is about $200. I guess you could also try an inverted footer that rises to a point like the Synergistic ones (which I have never liked)
As I said I get it to work with two points of contact on the chassis and one on the undercover (the design of the Marigo mystery feet is such that they end in points which is wher contact is made).
I have also tried bits of material above the footer to bring the chassis and sub cover level but this sounded terrible
As I said I get it to work with two points of contact on the chassis and one on the undercover (the design of the Marigo mystery feet is such that they end in points which is wher contact is made).
I have also tried bits of material above the footer to bring the chassis and sub cover level but this sounded terrible