I understand this but do you? What you're essentially saying is it's possible my play strategy can win by playing 40-50 sessions some years, but other years it does not....and the losing years lose more than the winning years win, right?
So tell me, is this the result of playing 99.6% games, whereas if you believed I won overall as I have done, then that could only be the result of playing 100.1% games?
Think about the mathematical chaos in all that.