Like I said, I don't want to mention the name of the vineyard. No point in sullying someone's good name if it's my tongue which needs recalibration. (I was, however, not alone in my reaction.)
All of these grapes were grown in Sonoma County, mostly Sonoma Coast. And that is exactly what intrigued me. Four wines coming out of the same winery from about the same geographical area with the same odd "finish." The fellow pouring was not familiar with the wines so I chose not to engage him on the matter. I will, however, return and try them again to see if the results are repeatable. If they are, then I'll investigate a little further.
For the moment, however, I am curious as to whether anyone else has had a similar experience or if this just Gary's palate going off half cocked (again)!