EP,
re: It is more likely a new speedpath recently discovered that needs to be added to the vector set. Speed path analysis is not an exact science. Speed limiters are discovered empirically and no doubt the new FSB speed introduced a new one not seen before. I'm guessing that the delay is to allow a rescreen of existing material.
Good post, good info., except for the comment on the poster's veracity. We can figure that out for ourselves, without resorting to a personal attack. OK?