Jeff,
If you are in the area, come on by--you can help me!
This "undo" of the Ray Paul window channel special is on my to do list this spring. Thankfully I only did the driver's door, not liking what I saw upon completion, for precisely the same reason(s) as you discovered!
Michael Salemi
1969 280SL
Signal Red 568G w/Black Leather (Restored)
President, International Stars Section
Mercedes-Benz Club of America