I can’t even imagine how NBPEL and NBPFSL could be the same. Maybe it’s because of my girth. If I would stretch it that long it would be sooooo thin. Btw, in which state is your cock when you measure NBPFSL (my NBPFSL differs much depending erection level)?
My BPFSL runs about .25-.5 longer than my BPEL. As I make gains the gap closes up then widens again the more I hang. FSL seems to always run more than EL. I think this is a good way to measure progress and gains to come.