This one took me a solid 30 minutes to decipher. I would have preferred yarns have been lettered, and threadings and treadling patterns been numbered and symbols. I finally figured out the warp is two colors (1 and 2),and are set up in threading pattern:
A (in color 1)
B(color 2)
B (color 1)
C (color 2)
B (color 1)
B (color 2)
A (color 1)
with any float thread in color 1 added to each side of the A warp block.
This creates a striped warp in colors 1 and 2.
THEN the weft is colors 3 and 4.
But each pick alternates between the two colors, changing shafts with each throw. At least that's how I've read it.
The treadling sequence is long, so I will have a cheat 'sheet' on tape on my beater.
The instructions have the treading blocks labeled A B C and D as well, which indicates the order of the treadling BLOCK pattern you are supposed to use. Combine those letters with the yarn letters and the letters indicating the threading and confusion ensues.
So, thread your striped warp at 15 dpi.
THEN
Reprogram your brain and understand that the treadling sequence is also called A,B,C,and now D, but refers to something totally different. This uses the LAST two colors, alternating with each throw/pick - NOW:
D which is the hemstick block of picks
now treading BLOCK set of letter:
A,B,B,B,C,B,B,B on repeat to the 77"inches on the loom adding a D hemstitch BLOCK back on the last set of picks.
KEEPING in mind, those As, Bs, and Cs are a LONG sequence of picks found on page 5 and 6.
I hope this helps someone else :) It's not my first rodeo, by a LONG shot, but this one had me swearing at the drafting table with highlighters for a bit.
Now off to the warping board!