Just came across a Decut Archery Bow Weight Scale in one of my archery boxes, anyone knows if these can be calibrated or are just junk? My bow shop was supposed to set my bow to 55# and the "scale is just showing 45#. I imagine I can tighten the limb bolts down to see if the "scale" is correct, however would still like to see other thoughts. The "scale" is made of some type of metal, however seems inconsistent with readings to me. Was bought from a British company, didn't realize it may be Chinese/ Japanese/ Taiwanese etc. origin until I just read the instructions. Tahnks in advance for yur thoughts. Would also appreciate what may be recommended for a digital hand held bow scale. Thanks in advance.