I purchased a Cowboy 797 sewing machine a month ago. Been playing around with it and have sewn a couple bags and a knife scabbard. I am having problems with getting the stitch length regulator to go any smaller than 5. It works just fine going up all the way to 8+ however it is too tight to move it any smaller than the 5. I have tried the backstitch bar trick, but still nothing. I was wondering if it would help to loosen the screw on the regulator dial. Any suggestions, or do I need to call someone at Cowboy? Please and thanks for any and all suggestions.