I have an HQ Sweet 16 and cannot recommend strongly enough that you consult their website for the HQ Live Archives. Monthly, 2nd Thursdays, they do a one-hour video tutorial on various aspects of their quilting machines. A few months ago they did one strictly on threading, adjusting, and a whole lot on tensions and their respective adjustments. I wouldn't miss them. Even when they're highlighting a machine that I don't have, I still pick up great tips. Just Google HandiQuilter and/or go to YouTube for a number of prior HQ Live presentations.