

Tension Calibration
Have an older constant pull machine and noticed last two string jobs seem to be looser than the 50lb I set. Anyone have recommendations on how to calibrate? I test tension before every job and adjust the internal knobs when needed. Is there a best practice to find the correct tension with the internal screws? My other theory is that the string I’m using to test tension may be well past its prime- is this a thing? Should I replace my testing string occasionally or is the reading always accurate?