Here Alan is standing on the headrests and sighting our 18" ruler that is taped to the magnetometer to the 4 foot ruler that is resting just above the door sills, (and parallel to the face of the D10A).
Here sighting is good and I adjusted the mixing sticks held in place with two green clamps so when JB KWIKing in place the two G-10 strips, registration will be effortless.
Y10-12-24