If your machine has a 9.5-inch harp, then you would probably want to get the 5.1 version. That is the one I tried out at the quilt show and really liked. It gives you quite a bit of space in which to quilt.
It really isn't made for pantographs.
It was *so* much easier to use the Easy Quilter and quilt by moving the machine instead of the quilt! That's what I liked about it. At the show, the demonstrator had me "floor" the sewing machine pedal and it was very easy to FMQ leaves, circles, etc. At 1600 stitches per minute, that was a lot of fun!