I've made a "signal boost" post for you. Maybe some of the other folks who read my journal will know for certain whether these jackets were a real thing GWD did, and whether this really sounds like CD. (They don't speak up about FK much these days, but I am still in touch with a few FK fans who know a lot more than me about those kinds of things.)

I have no hard evidence either way, so I'm holding back the urge to opine without data. :-)