I tried the HQ SS16 and bought the HQ16 - so I would not have to sandwich the quilt top. Sandwiching the top prior to quilting it on the Sweet Sixteen was my determining factor between the two machines. You don't have to sandwich when you use the HQ16. I have been very happy with the HQ16. Using the Janome 6600 for FMQ is also a bunch of fun - I purchased the quilting foot for the 6600 and it is wonderful. Good Luck!!!