One idea would be to go back and watch the Assemetry Sample at the Loom in Season 2, where Jane changes zingers (zinger, taking out your warp zinger & replacing it 2.2.3, 31:52)(info from the Season 2 Index). You should be able to slip that mini warp in where it belongs. I'm assuming that if you have more than 404 threads in your warp, you aren't weaving with thick yarn. 10 threads of 8/2 cotton (for instance) can easily be tensioned off the back with an S hook or film canister. You can do it!!!!