Jannie, thanks for sharing the problem you have had with your frame and machine combo. While I do not know anything about this particular frame or machine, I do know that those who have tried to use a 9 inch sewing machine have encountered a similar experience.
You explained it very well. You start out with a 9 inch quilting space, but if you are going to make large quilts, the more fabrics/layers you have to roll on the take-up pole, the less your quilting space.
These frames are designed to roll the finished area so that they fill the space in the arm of the machine. The larger the roll, the more decreased is the quilting space on the quilt as you work your way toward the end of the quilt. If you plan to do only crib quilts or wall hangings, the 9 inch arm would work well. Some members have them and get along fine with them. There are some who have been disappointed.
Please be aware that there are some other options. There are some machines that have 13 and 15 inch arms. They are reasonable in price and give you more option for having more quilting space. I personally chose a 13 inch arm and have been satisfied with the way I am able to finish my quilts. Being reduced to 4 or 5 inches of quilting space could be very frustrating.
For anyone with questions, please send me a PM.
June