Well if you are rich I think you could hub and spoke from accountA, then grant from BCD to A and account xfer to E.

It's grant per two levels right? So for every team boosted to 60 (80 boosts ABCD, A RAFs BCD) you would have BCD * 60/2 levels to grant, 90 levels. So after you grant a 60 for E that leaves 30 levels. So for every two teams boosted to 60 you get an extra toon. So there are mage,lock,sham,warr,rogue,pally,priest,hunter,drui d, so 9 classes (plus DK). So you could level 8 teams of 5 and then grant and transfer just four toons of the last class, saving a small amount of time boosting (and ending up short one toon of one class, but that is no big deal).

Not sure why the other posters stopped at 59. I have three 60s with a few minutes /played so I know you can grant to 60.

I think granting is pretty much overrated. Seems to me that the 3x XP is the main benefit of RAF.

-K