Awesome, thank you all! I guess I'll continue to measure standing. It's interesting to see the two differences. The BPEL standing (7) and BPEL sitting (7.75-8) is around 0.75 to an inch difference for me. I'm guessing it's the inner penis? Or is the inner penis the other half of the full length that hasn't been pulled out yet, which is more than 0.75 inch? For example, if a man has a 5 inch penis erect, there's another 5 inches hidden? Is that right?