Like I said before,,
It is just like religion.You never come to a 100 % conclusion.
Fact for me is:
Since the early 70s when MY oil came to Canada,I have used it in all my Vintage and Modern bikes at a mix rate of 100-1 in MX in HS in Enduros in ISDTs(and that is 6 days brutal on the engine) and never ever had a failure.Never a piston sizer,nothing.
That MORE OIL (look what Hydraulic is doing) show more power on a DYNO is well known.But DYNO and real life is a lot of difference.
Piston-Pistonring and modern cylinder material(plating etcetera)have reached a quality which gives factorys (like KTM) which are very carefull what they suggesting) a recommendet oil ratio from(always depend what oil) from up to 80 to 1.
I always tought my customers to mix what the bottle says.And have the carb jetted accordingly.After that,stick to the same brand of OIL and even Gasoline .
Otherwise,...whatever makes you happy.