^ ^ the above will not work as 1 is linked to 2 and as the mobs will be trivial to to the 70 booster, thus no triple xp. if on the other hand you had a character of the same level as the 2 +3 accounts you would get the full xp bonus

the only way you will get the RAF bonus if you want to boost is by having the booster on a non linked account

eg.

acc 1 (booster) - lvl 70
acc 2 (RAF linked to acc3)
acc 3 (RAF linked to acc2)

acc 2+3 get triple xp on mob and quests.