The 8" thick, poured concrete walls were poured mid-afternoon in perfect weather today. The forms come 8'-4" and 9'-0" high, I was told, and our walls are 8'-6" so the workers set the tops down from the form's upper edges and troweled the final elevation smooth. This will help ensure a gasketed, air-tight seal between the concrete and the wood plate.
I secured this mould to the upper inner wall of the utility room. We'll see how it turns out.