Since I was putting another short warp on I decided to give the flat lease sticks another try. Getting them tied on was a little awkward on Arthur because he's 40" wide and one end kept falling while I tied the other.
This is not what I had expected!
I triple checked the tie-up and kept staring at the draft, willing it to tell me what I was missing. And then the obvious hit me. It's a two-color weave and I only warped one color. So I unwove and spent some time looking through the 8-shaft drafts in Strickler's book. I've found one that I've been wanting to try anyway and will only have to change the tie-up. Always the beginner. The only good thing I can say is that mistakes no longer strike fear into my heart.