Fsl ?

What does it mean if your FSL is under or equal to your NBPEL?

Nothing specific. It is worth nothing that not everybody takes FSL in the same way; for example, many grip their flaccid penis just under the head and pull as strong as they can; I can’t stretch this way, it is extremely painful (maybe because I am uncut), I pick the head between the thumb and forefinger and pull - I apply less force, but I stretch more penis. Hardly this will give the same measurement.

Don’t worry about those things, just measure always in the same way.