I have to start off by saying that this was a very rewarding learning experience and I hope to be able to articulate some of what I learned by making this miche.

I have made Peter Reinhart's Poilane-style miche many times, but this was my first attempt at Daniel Leader's version. The formulas are different in a number of ways. Leader uses autolyse, which Reinhart does not, and does not use cold retardation of either the starter or the formed miche, which Reinhart does. Leader uses a higher hydration dough and folding an hour into bulk fermentation.

This is a recipe that Kenneth, a long-time poster to rec.food.sourdough, has posted a few times in response to requests. I made it this weekend and can safely say it's delicious. Tangy, but not overpoweringly so, with a smooth crumb that, though not full of big holes, is nevertheless a moderately light bread. It sprung well in the oven. In fact, it reminded me of some of the better Desem breads I've made.

This relatively recent article  http://www.timesonline.co.uk/tol/news/world/europe/article1980288.ece discussed Poilane's use of 'grey flour', how good it is for you, etc. Along with thoughts that steam injection is a relatively 'new' invention for us in bread baking and the 'old' french breads did not use this 'technology'...