Quick question. I have a high erection angle as well as an upward curve. I also have what seems to be tight skin/ligs so that if I try to do a BPEL measurement from the top I can’t really press the ruler back enough without it hurting. I can do fine if its slightly off to the side of my dick. Is this not a very accurate measurement? Looks to be about a 1/4-1/2” difference.