That's true... fact is, a little extra won't hurt much,... and too much will blow out the CCV...
...but,... more than enough, is more than enough,... and oil is just sloshing around in the way of making power...
Using that logic,... even less will make more power?.. and it will for a very short while...
...
The perfect balance is in the sight-glass... enough to lube, but not to sludge...