Asked Sonnen to look at the rear window and the leather-covered instrument pod surround while the car was in for an oil service. Mentioned that this would be the 4th time for fixing the window/top separation problem. On the instrument pod, the leather was starting to lift creating a "bubble".
End result: Sonnen installed a brand new convertible top and a brand new instrument pod surround. All covered by warranty!
Got the car back yesterday. Couldn't be happier, especially with the great top-down weather in the SF Bay Area today.
Thank you Sonnen BMW!