I'm completely stumped and so frustrated with this wideback fabric!! I pulled a thread and carefully cut along the channel, but the fabric still isn't square. When I lay it out, I'm getting crazy folds and it just looks stretched out of shape, exactly like before I even trimmed. Even doing the jiggle test with the selvedges, I'm still having to fight it to get a relaxed drop. If I trim again to make it lay flat, am I just completely mucking up any chance of it actually being square? Could this just be a bad length of fabric, or am I missing something huge here? I'd appreciate any suggestions!!