Great data. I love not having to make my brew day more complicated. One question, though... did you check OG for each batch? I have never understood why having denatured enzymes in a dark malt matters. We are, after all, interested in using the enzymes from our base malts to provide the sugars for conversion. If there are starches that could be converted in the dark malts, we are sacrificing some yield if we don't do a full mash.