Wendy, No opinion on the thread, as I still have plenty that came with my machine, plus some smaller spools, from my bernina. But if I can do caps with no problem-- I am sure you can. I have the WACF and once the hat slipped (hooping error) and messed up the outline, at the recommendation of the tech I ordered the tensioner, it came last week, but i havent tried it yet. I just followed the instructions in the book, with no problems except on that one hat. You can do it. By the way all I just stitched about 120,000 stitches with no breaks. I am loving this now, thanks to all of you and your support. Vicki