Marianne, the color of your fabric might also be a problem. We have a very colorful company logo, bright red, orange, pink, green and yellow. About 15 years or so ago our advertising company came up with these fabulous colorful mouse pads with our oversized logo... When the infrared mice came along, we suddenly started having problems with these mouse pads, everyone thought it was the bright red, (incompatible with the infrared), after a few trials we found out that it was actually the bright/sunny yellow that could not be "read" by the infrared mice... We had to make a new design, no we did not change our logo, but changed to more muted colors on the mouse pads, or to a plain background with a smaller logo that was placed where it wouldn't be a problem
could possibly be an issue with the BSR, havn't quilted anything with large bright yellow patches... But will try it out.
My main issue with the BSR is that it shreds some of my favorite super-fine superior rainbow threads... But other threads it's sewn perfectly. My main problem is still learning the right tension settings... Havn't really figured these out yet and will have to take lessons from Betty Jo one day, I think she's really got her 830 figured out!