Dude, that is a hot topic over here these days. I'll tell you what i think of it and what others are also thinking of it.
Bone Pressed Erect Lenght ( BPenis EnlargementL ) is what is known as the bone pressed measurement.
You measure across the top of the penis from pubic bone to tip of penis. You press the ruler against the pubic bone just enough to make contact with the bone. That kind of measuring is the most consistent i know of. The bone is fixed, the erection quality may vary but you get a pretty good idea of your size using this method.
The other way of measuring is the NBPenis EnlargementL ( Non Bone-Pressed Erect Lenght ), this method is the one being debated to death right now, i personally don't find the logic in it because if you happen to be a bit overweight or if you have a large fat-pad over your pubic bone then you will not be measuring your penis size, you will only be measuring the visible penis, from fat to tip. That's it... Changes in one's
weight, or water retention levels can dramatically vary your measurements and you will have a tough time measuring gains or there lack of.
Get my point? We all know that if we do have some fat on there it WILL NOT GET IN THE WAY OF GOING FULL DEEP on her. The fat is not hard, it is soft to the touch so you just push beyond it to go deeper right?
So, IMO, you should always measure the same way to gage size gains. Either method you adhere to, just stick to it and always use the same one. If not, then you'll have some trouble keeping track of progress.
Some dudes seem to think that NBPenis EnlargementL is the way to go because they think that only the visible part of the penis will enter the woman's vagina/ass/mouth. Not true...Tell that to Ron Jeremy and his huge beer belly. Does someone's belly prevent them to go all inside? No, it does not.
Peace
Mike