I tried a test usingmy 50 rogue and a level 1 mage on my RAF account and was only getting 1exp per kill and they were grouped. I understand I can tag it with the RAF accounts and then kill it with the DK, but I thought u could group all 5 together and use the 3x exp mutipler.
Since you mentioned dragging a low level 1 around and killing stuff with your 50 rogue...

...they long since removed the ability to do that using RAF. People were exploiting the RAF bonus by dragging around a level 1 ghost on /follow and getting full RAF bonus XP. This is not intended.

As stated in the official RAF faq, dated 8/8/2008...
�While in a party together, any experience gains are increased significantly.
�If both players are present when the mob is killed both players should receive triple experience.
�If the mob is trivial to either character, no experience bonus is earned.
This means that if you have Player A (level 50 veteran character) grouped with Player B (level 30 RaF character) and they kill a mob that is level 32, since the mob is trivial to Player A, no bonus experience is awarded.
�If both players are present, experience gained from quests that are not trivial (gray difficulty or 5 levels below your level) will be tripled for both characters

A more recent official FAQ is stickied in the customer service forums here: http://forums.worldofwarcraft.com/th...=1&pageNo=1#12