So, sometimes the bobbin thread on the long arm quilter screws up and I end up spending HOURS ripping out stitches. You can contort yourself around and crawl under the machine with a flashlight to periodically look at the stitches if you have fully functioning knees--I don't. Or you can spend $490 to buy a camera to attach to the underside of the quilting machine.
You can do some Annie-ized hillbilly
DYI thing and buy a wifi endoscope camera for less than $50, zip tie it
to a dowel and viola, under quilt camera.
The potential for Høme endoscopy procedures is a bonus.