Forkish-ish 50% Whole Grain w/Biga

I based this loaf on Ken Forkish's 50% whole wheat bread with biga. Instead of 50% whole wheat I made this 40% whole wheat and 10% rye. The hydration is 80%. 

I am very pleased with the result. A nice open crumb and light texture considering the high percentage of whole grain flours. I also love the deep color of the crust, which is shatteringly crisp.