Are you referring to a stand-up model or a sit down model?
Most people don't like the stitch regulator for the sit down Sweet 16. They've got a new model, Capri 18", that has the stitch regulator in the table. It looks pretty cool, but I haven't tried it yet.
If you want to get the Pro-Stitcher for a stand-up Sweet 16 on a frame, you might as well sell the one you have and buy a whole new set-up. You'd need to replace the carriage, change the track system, add track to the table, replace the "pods" on each side and the handlebars.