OK grip size vs. ideal girth

Just a daydreaming thought that has been mulling around in my mind for a while..

Get some measuring tape, make an OK grip with one of your hands, thumb and forefinger. Measure the internal diameter of the circle made. How does this relate to your current girth or girth goal?

I have to use my middle finger as my index finger is too short to go all the way around my penis doing that

My only goals are to get steel rod type penis and longer flaccid :)

At the base I can only get my thumb and forefinger to meet if I compress it a bit. My thumb and middle finger just touch. I wouldn’t want to become a whole lot thicker there.