I decided to weave this piece using Tie-up #1. The weft colour sequence is Fog/Black/White.
4 x X treadles (1-4), 3 x YX treadles (5-8, 1-4), 1 x Y treadles (5-8), 4 x X treadles (1-4) with Fog yarn,
4 x Y treadles (5-8), 3 x XY treadles (1-8), 1 x X treadles (1-4), 4 x Y treadles (5-8) with Black yarn,
4 x X treadles (1-4), 3 x YX treadles (5-8, 1-4), 1 x Y treadles (5-8), 4 x X treadles (1-4) with White yarn,
I ended by weaving 2 picks of opposites and hemstitching in White.