Best solvent to clean Vibrapod marks?

Ronsonal has no effect on metal Dopogue (or did you mean the Vibrapods etched the surface?) Anyway, the 'metal' surface must have some kind of coating on it. Some of these clear coats are resin (epoxy) based and will absorb the solvents in sorbothane (or from rubber feet, if you stack other components on them.) Don't know why this happens with these clear coated surfaces (as opposed to painted surfaces) but it often does.

Sorry, I meant to be clear that the Vibrapod goo did indeed etch the (metal) top of the amp. So Ronsonol (or anything else) had no chance to correct the problem. Dave

If Vibrapods are sorbothane, they are a highly plasticized polyurethane, not rubber. Most polyurethanes will leech out plasticizers and oils over time. The goo will actually melt certain classes of thermoplastics. (It happens in our lab when parts cast from some highly specialised polyurethanes get set on a sheet of polystyrene and left for a couple of months.)

Use low density polyethylene ("Ziplock" bags or similar) as a buffer under the feet.

Also kerosene, charcoal lighter (naptha), or maybe Bestene, will remove the residue. Nothing you can do to fix any topcoat or remove the stain if on wood except refinish.

Jim S.