I had the Pfaff 1200 as well. It was on a 10 ft Grace frame with Cruise Control....and I fought that machine everytime I used it....could not get it to hold the tension, constantly broke thread, and the harp space, while being 9 inches, wasn't big enough to do more than a large lap quilt without having to dismount, turn, and remount the quilt. Was more work than it was worth to do the same thing I can do with my 15-91.
I have a handquilting frame that I can use to pin quilts or hand quilt with, so that's all good...
I sold the Pfaff and bought the spousal unit a beater of a pickup truck that he loves! Smartest thing I've done in awhile, he doesn't say word one about my machines now!!