I have this set up, as well as the stitch regulator. Setting it up was smooth and operating it was too but for the longest time my machine would skip stitches randomly which made me nuts! I took off the stitch regulator and that helped somewhat but it would still skip and I was just about to sell it and say forget it!
then a friend came to use it. She turned the speed down since she was new to long arm quilting. It didn't skip once! What?! Seriously, I was sewing too fast and that's all I had to do to fix the problem that had caused me major stress for years!