The Mr. Blue is very easy to operate and very accurate especially with the auto blocker which eliminates one step with a lensometer and the possibility of the axis being off 1° or 2°. The milling feature is also great for high cylinder lenses eliminating the torque on the lens so the axis is spot on, always.
Perry Proietti (optician) at Dr. Garry Regier, O.DLos Angeles, CA