I can agree to almost all comments in this thread, but especially the wish for at feature to allow diviations from precise coordinates, e.g. radio buttons allowing 2 meters, 5 meters, 10 meters or 30 meters deviation from exact position. When cachers are instructed to do projections from anther set of coordinates, even minor calculation differences might cause a minute or two change in the final coordinate, In Denmark the most common used GeoChecker have thos feature (https://geocheck.org/). Anyway - great to have the checker feature as integrated part of the cache description!
