Never have, never felt a need to. Measurement is a relative term as there does not appear to be a standard of start point to end point. Does one measure from the pubis mound, what if one is fat, do they compress this and measure from there?
Who the fuck cares?
I am happy with what I have, I know my old lady is happy with what I have, and by the way if I weren't happy with what I have there is literally nothing that can be done about it.
My measurement?......Balls deep when and where I need to be.