RAF Question

[Clicht]

Well currently I've been planning on RAFing fives accounts together, which are all new accounts so they will end up in this layout.

A>B>C>D>E

All starting out at level one, but something weird happened when testing out the 3 accounts that I have already created. Which look like:

A>B>C

All three are grouped together (I just purchased these accounts a day ago, and still have trial restrictions, but they are RAF'ed, I'm currently just waiting for the trial restrictions to fade away in the next 48 hours)
I also got these characters in a group by inviting them through my main account (Which I may add is not linked to any of these accounts).

Anyways... while they are grouped this is what happened:

Account A: +54 exp gained from RAF, +2 group bonus (Combat Log)
Account B: +36 exp gained from RAF, +2 group bonus (Combat Log)
Account C: +36 exp gained from RAF, +2 group bonus (Combat Log)

Why exactly is this happening, I've followed some peoples layouts and I just simply don't understand why one account is gaining more experience than the other two. I'm thinking it may be due to the fact they are still trial accounts, but none the less I'm still quite confused.

If anyone understood what I just wrote and can answer this question I'd appreciate it very much. Thanks,

[Tim]

Log into each account via battle.net and confirm they are RAF'd to each other. Also, you have to be in range, as well as be within 4 levels.