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Excess oil should be scraped off by rings within seconds when running engine.
Hmmm, you may have had some grit or carbon chunk holding valve open earlier? Couple months ago someone reported something holding their valve open and giving really bad numbers. Then it freed itself and blew through.
At this point, I'd do piston-soak anyway. These bikes run really rich in high-end and has lots of carbon build-up.
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