Gee, thanks. LOL. Out here, we don't have those seal tubes on the nozzles any more, but that same problem still happens. I know that in the F series trucks, there is an anti siphon valve inside the filler tube, and sometimes it prevents the fuel from draining into the tank as quickly as it should. I'm not sure what the solution is, but I'll look into it for you. When ever I have that problem, I just jump on the bumper a couple of times, and that seems to solve the problem. LOL.
Take care,
~Chris