It would be unwise to ignore the other possibility: that your oil pressure is actually marginally low. The consequences can include failed bearings and engine seizures.
As your oil temperature rises during a track session its viscosity drops and engine oil pressure drops slightly. If you have low oil pressure (as opposed to a bad pressure switch) usually what happens is that initially the oil light will start to flicker after riding hard either on track or in the canyons, but not under normal commuting type riding. After awhile the light starts coming on more frequently, even if you're not riding hard.
I would first check to make sure that the oil pump clearances are not out of spec, the driven gear oil seal is OK, and that the oil pressure relief valve is not lifting at too low a pressure.
Shazaam!
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