Barney,
Your roof-end strip looks a lot like mine, and I wish my setup was similarly simple. But I have both roof rack and ladder posts that complicate matters just above the strip, and even more screws. I have also already applied the Rustoleum leak seal and will probably need to remove it before using tape. Thank you for letting me know that I don't need to remove all the caulking over screws before applying tape. Because I have other projects underway right now, I am hoping that more permanent roof repair won't be needed until next summer - although I realize that if the roof keeps leaking, I really will need to find the problem and fix it now.
JRMunn