Real-Drawlength measurement for release- and finger-shooters:
As simple as possible with a (release)cord. Tie the cord at the nocking point, lay the open end between bowhand and grip. Pull the bow - let the bow down. Mark the point at the rope between hand and grip, measure it, done. That is the real drawlenght. To determine drawlength according AMO, please add 1.75".
For using an measurement-arrow, the trailing edge of the anterior Berger Hole is your reference for measuring.
