Absolutely consistent. I spun the thing over at least 25 times looking for something that was changing. #6 always came on at 0 and #8 at 4 and there were always 45 high res pulses between low res. The only explanation I can think of for this is that the center hole is cut off center in the trigger wheel, or the material wasn't perfectly flat when the laser cut it.
Barring any miracles I guess I'm going to go looking for another aftermarket / remanned opti and see what I can find.
I know no-one wants to yank their water pump to dismantle their opti, but I'd be interested to see what part #s the trigger wheels have on them if anyone has spares / cores lying around.
Edit1: Looking at the trigger wheel more closely this morning I'm noticing some warpage where the indexing pin / fingers are. I'm going to pull the distributor body and see if I can straighten this out and re-test.
Edit2: Getting the wheel to relax completely made no difference. Additionally I noticed a small amount of slop in the bearing so I'm going to order a remanned body that from the photo looks to have the # 10475417 trigger wheel.
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