Thefunk: Thanks. Definitly waiting before upgrading as well.

Ualaa:
I made the mistake of inviting all my 4 RAF accounts from A. Like this:
A > B
A > C
A > D
A > E

They are all linked on the same battle net ID. You say that I can call Blizzard customer support and change it to e.g. A > B > C > D > E?

This basically means that I'll have an awful lot of level to grant to A. Which kind of sucks as I'm using all character slots on my primary server :-/

Though, I'm fairly sure that I have been able to grant levels between B,C,D and E. I need to check up on that when I get home.