I'm finishing my first piece on the windowpane fabric and after experimenting, I've discovered it's best to work the drawn thread around a single "bundle" of the machine drawn threads women into the fabric. It's a bit slow going, but when I tried going over two bundles, it didn't look great on the front.
Thank you for the tip. I had been wondering how I was going to hem mine and thought I would just have to experiment. But I see how well this works.