Sewing on a strong hold clamp is difficult undertaking due to the small size of the strong hold clamp and the large size of the machine sewing arm. Machines with smaller sewing arms and/or stronger drive motors will be able to take advantage of more of the available sew field.
The Strong Hold Specialty Clamp is mounted directly to the machine drive bar (same as your cap driver), for a positive attachment. Machine specific adapters bolt to the clamp body and are used to attach and adjust the clamp to fit your embroidery machine.