Back to 69 design question. When you look at the figures John posted above, vinyl was popular in 69, even with the design change. In fact the numbers show vinyl was in and convertibles were on the way out! My, my, how opinions change over the years. Go back to 2006 in this thread where there is discussion about the 69 design.
BTW, didn't the vinyl come back to the driprail in 70?