Alaska
I had the same problem with my new SBEII on a duck hunting trip to SD. Customer service was very helpful. Mailed me a new pad right away. Also recommended using the light silicone adhesive (I would think the lubricant would make it fall off easier) once the pad was cleaned. This would allow you to remove the pad without damage (as opposed to using super glue) if you needed to access the stock to make adjustments.
While it has been a pain to deal with some of the issues with the SBE II, I have found the Customer Service personnel very helpful and responsive to the problems I have had.