Hello All, In my use of the SAT or SOT when using just the F-4 tuning: It is not necessary to stop the lights when you are tuning down from B-2 or up past F-6. The machine is not being used to measure but only to compare. The trick is to get the light pattern of one note to match the pattern of the sample note, and stopping the lights just wastes time. Try just matching the speed of rotation. The eye is very accurate on things that move, as far as matching the speed of rotation. The only time you have to worry about stopping the lights is if you are recording a memory tuning. Try it , you'll like it! James Grebe R.P.T. of the P.T.G. Since 1962 in St. Louis, MO Home of Handsome Hardwood Caster Cups pianoman@inlink.com
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