Ahh at first we dealt with them by asking our higher ranked healers exclude using skills that the other healer didn't. Work OK.....but not the best.

We would also ask melee not to use fetterward versus new healers. Made it impossible for them to learn.

Then we stopped dealing with AP differences. It matters way less than you think if everyone is geared the same.

But, that is also due to how I handle match making. All in all though, AP discrepancies didn't matter a week into our event, both teams even on wins/losses if everyone wasn't completely new to PvP.