Damn header leaks! wtd?

I don't know why I didn't mention this in my first post but I cut the gaskets into three pieces. One for the front port, one for the middle two, and one for the rear, and throw away the useless parts in between that just discolor and warp. I use just enough of the copper RTV to stick the gasket sections to the heads directly centered around the ports. When that has dried enough that they will not move I put a thin coat on the header side of the gasket sections and let that dry completely. Then I bolt the headers on and retighten after a few hours of use and again a week or so later.