I ordered Bobbin Tension and Top Tension gagets from Superior Threads for my Nolting Mid Arm quilting machine because I had tension problems. I had to do my own figuring for tension but it solved most of my problems. If I remember right, the numbers for the HQ 16 are already on the sheet of info. They did cost a bit but I am not sorry I bought them. Go to www.superiorthreads.com and look for the Tension gagets. Hope it helps you.
gloriaquilter