AP ships their mounts with PEC pre-flashed to them. I understand that the PEC curve is good for a year or so. Don't quote me. As a mount wears in, a PEC adjustment is in order.
Also, if you adjust your RA plunger settings (SB recommend 2.25 to 2.5 turns 'out') that would alter PEC, as this changes the gear mesh/friction between worm and main RA gear/cog. Have you adjusted them? That could explain these minor deviations in PEC.
Last edited by Logieberra; 21-10-2013 at 10:52 PM.
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