One little note I forgot to mention. When I went to mill the head I actually discovered that the factory machining of said head was not actually level, and canted to the right (as if sitting on the bike) away from the pushrods 1 or 2 degrees. I doubt this would cause any issues, but it was something interesting to note. My first light pass (removing a scant .1mm) with the mill revealed this small imperfection, as the bit lost contact with the right side of the deck surface in the last little bit of travel.
I am sure it's not the only flaw to be found for sure, as these things are cranked out of casting molds that have been used countless times and machined with machines that probably haven't been calibrated or adjusted very much in their lives.
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