Besides the Whole Wheat Breads, I also baked a SFBI Miche and Hamelman's "Pain au Levain with Mixed Sourdough Starters" this weekend.
As I have for the last few bakes, I used 50% Central Milling "Organic Type 85" and 50% Central Milling "ABC" flours for the "bread flour" in the final dough. I haven't tasted it yet, but when I sliced it 24 hours after baking it has a lovely wheaty and sour aroma with toasted nut notes from the boldly baked crumb.
When I last made Hamelman's Pain au Levain with Mixed Sourdough Starters, Andy (ananda) suggested using a more firm wheat levain and a more liquid rye sour for this bread. For this bake, I did that. I just put the amount of water called for in the rye sour into the wheat levain and the amount of water called for in the wheat levain in the rye sour. (Both call for the same weight of flour.) I can't say this accounted for any difference in the final product, although this batch was denser than usual and had a more pronounced rye flavor. This is a delicious bread, in any case. I had it for breakfast, untoasted, with just a little butter and Santa Rosa plum jam (very tart) and for lunch with Toscano salami in a sandwich.