Btw,
Forgot to mention Nsgarch is right. The Goldmund mat was not intended to couple via the sorborothane mat. The Goldmund mat originally had a paper backing that peeled off to reveal a sticky surface that was then applied to the platter. If the sticky back surface is now gone you could use some 3M spray glue to apply it directly to the Oracle. A hair dryer or low setting on a heat gun could be used if you ever wanted to remove it.
Nkj
Forgot to mention Nsgarch is right. The Goldmund mat was not intended to couple via the sorborothane mat. The Goldmund mat originally had a paper backing that peeled off to reveal a sticky surface that was then applied to the platter. If the sticky back surface is now gone you could use some 3M spray glue to apply it directly to the Oracle. A hair dryer or low setting on a heat gun could be used if you ever wanted to remove it.
Nkj