Outer Limits 4x4 Board

Can anyone give any feedback to KAM Diffs (http://www.kamdiffs.com)?
Sam in particular?

I have heard some unflattering stories about their products, but that was from one of their australian competitors so it wasn't exactly impartial. I don't think anyone in australia will have had 1st hand experience with their stuff. Maxi and Jacmac are both made here so no need to import KAM stuff.

Ive had 1st hand experience with their axles. The fonts ($1300) broke in 5 weeks. They are far to stiff and dont flex like maxi do. Ive had maxi in the same vehicle for a year now with more HP and larger tryes and had no problem