If you have 3 accounts

Account a - veteran account
account b (linked to a)
account c (linked to a)

If ANY player out of the three linked accounts has a player that sees the mobs as grey, no 3x expierence.

Although if all 3 of your characters go into an instance with a friend of yours, or 2 other players in my case, then you still get RAF expierence.

Cant boost yourself,
So pay that sunwell pally to boost you through all the isntances for 50g every 30 minutes.