I don't crunch numbers on builds I just go my experience having two capped alts both WF. one addy one mithral un-buffed no matter how i arrange items or feats or enhancements max AC seems to be about 27. while many of the fleshies I run with have standing AC of well over 30. However back to DR while iI get hit a little more often, I tend to take less damage per hit. I'll eagerly await Hu's analasys later today.