Alright, finally got on the nerf session I had planned for quite some time for this now.
-Materials no longer give a stat-based bonus to natural armor, just a flat+2, plus +1 base Half-Golem, since this is a template that can be taken by almost everybody after all.
-DR from composite plating is now a flat extra bonus instead of doubling.
-Strength gained from Artifical improvement only applies to basic Strength-based stuff like hitting stuff in melee, basic combat maneuvers and carrying capacity.