50% khorasan biga

Made a 50% khorasan/bread flour with the khorasan in a biga. Whole khorasan flour was hydrated at 45% with 10% sourdough starter and left at 15 degrees for 14 hours. I then mixed the biga with bread flour this afternoon to make a loaf at 75% hydration. Bulk fermented at 18 degrees for 4 hours, proofed for 1.5 hours and baked at 220 degrees for 40 mins.
I was expecting the mixing by hand to be very difficult, but it was really just like any other loaf. I enjoyed making the "apple crumble" texture biga!