Completing weighoff prep

Show adjustment of Lighting Rail. Describe approach to even center-pinning and its consequent empowerment to weighoff with upweight only. Show evenness of original pattern leading, fine-tuned by custom weighoff. Remove keys to tray for boring having marked bore locations with chalk. Method to move compensatory key weights to new position accurately without topstack removal when weight to add happens to perch over an existing key weight. https://grandwork.tools/