Ok, good, glad someone else thinks this way too. Maybe it is an upstate NY thing.
We get obsessed with creating the perfect engine operation profile for our bikes. I think it appeals to our engineering/perfectionist urges. What types of oils, warm up regimens, number of milliseconds at redline, and so on.
What is the point? Are we gonna keep these bikes until they have 250,000+ miles on them? If so, great! If not, all you are doing is extending the life of an engine which will likely never get the opportunity to be tapped into because the bike be long gone by then.
As JW says, change the oil once in awhile, follow the manufacturer's recommendations, and enjoy.
If you exist to gain satisfaction and pride from neurotically maintaining your vehicles, enjoy that also!
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As for engine longevity tests, I believe them. Not sure if they really tell us anything, though. I remember the 1948 Tucker (also a flat motor) was run around a track at WOT for 5,000 miles at the Indianapolis Speedway in the testing process. And that was in 1948!! I think Opas was there...