Update - I haven't been able to work on the car as much. I had purchased a ttop weatherstrip holder trim for the driver's side from GBodyParts and needed to install it. There were several ways to install , bond it, screw it or weld. I chose to weld it, drilled a few holes , cleaned the primer off the header, then grinded the weld spots down. The original seam sealer that I used was out of date and always remained tacky so after a couple of weeks I just cleaned it all off and will apply some newer stuff. Hopefully this week all of the black primer will be sanded off and the car can be reprimed again with the Epoxy primer and then wet sanded. One thing to take note of that caused me a little extra work is that the top of your car has a lead seam line where it attaches the roof to the a pillars and slightly above your quarter windows. If you are aggressive on your sanding , you will remove some lead and have to use body filler.