When weaving point draft twill patterns, the pattern reverses on itself. If you read the introduction to that section in Handweaver's Pattern Directory it will inform you that because of the reversal, these patterns require a floating selvedge.
If you don't read this section or already know this fact, a few inches into weaving you will discover the problem, unpick all your work, and improvise a weighted floating selvedge. Ask me how I know.
@kyle Great decision on the pattern borders and the edges are just 👌🏻