Here are two photos from my 68 non-sunroof G-car. It still has its original vinyl top. Note the difference in offset of the seams compared to the quarter/filler panel seam. It is off center by almost an inch. I had never noticed this before. Another one of Fords lack of quality control back in the day. Hope this helps.
Those pictures will help a lot thanks. I didn't notice the offset on mine but I didn't take any pictures of those seams either. Hindsight on some really simple stuff that I would photograph next time though. Thanks a lot. I couldn't remember if they were suposed to be double seamed like the top of the roof or what.