Just got a Stringway table top stringer with fixed clamps through an estate sale. Think it might be a ML100 from pictures. I am a long time stringer with a Klippermate. Mine has a scale on the drop weight bar so you can set the weight at the tension you need. The Stringway stringer has no type of tension readings on the bar. I assume I am missing whatever I need to set the accurate tension. Can someone that strings with this machine tell me what I am missing to know the tension along the various weight settings on the bar? A sticker? Some type of scale to measure the bar?