I realized that I never posted the fix for this problem with my Mille. I handed the bike over to a factory trained Aprilia tech who happens to have moved to this area from LA. The front cylinder had a broken piston ring. There was no way I was going to find that out on my own because I just would not have wanted to believe something like that could happen. He says he has seen it before so it does happen on the leading cylinder apparently?
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