A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2016 Dec 20, 19:27 -0800
Measuring index error should be done with a scope. The higher the power the better. The range differences shouldn't be more than 0.4' for a set. Your 0 to 2' range of index error is too much and indicates that something is wrong.