Hello, All, I am redoing the front seat on my '61 Custom with n.o.s. materials, but a question has come up. For some reason there is a seam in the very middle of the driver's back rest. This welted seam is very uncomfortable to the back and is also where the original upholstery came apart. Is there any compelling reason to put this welted seam back in? None of the other seat back have the seam, although it is absolutely a factory thing. I am just afraid the n.o.s. material may be prone to splitting at this spot, so I would like to have a smooth seat back in the fabric covered area. Can anyone speak to this? Thanks, Rex Crews '59 and '60 Crowns and '61 Custom