In reply to DanielJ:
It's funny, I always find it strange that Brits grade things in E-Grades abroad so much for hard routes that are worked on for some time. For me, it's a massive release to be free of the "E-system" and just slap a US or French grade on a route. It's not that I don't like E grades, it's just nice to not have to think about the ego driven danger-difficulty aspect. You spend the whole time second guessing yourself.
When I was asked to give E grades for both Century Crack and Greenspit, I really didn't want to do. Funnily enough, I think after a couple of years I see more references to the E-grades of those routes that aren't even the ones that I reluctantly gave!
As for E-grades given to FAs done onsight. Give me that any day