I have an Avet (un-magged) and an Abu (magged). I took a while, but I love casting the Avet. When I cast the Abu, it feels like the mag's are slowing the spool down too much; even when I dial it down to the lowest setting.
A friend of mine used earth magnets from Radio Shack and crazy/super glue. This is the article he mentioned to me:
http://www.charkbait.com/article/2004/Walt_Galen.htm. I hope it helps.
The newer ones have a mag/casting control.