I sort of agree with this. I'm around 7.5 BPEL but with around a 1" fat pad that makes me around 6.5-6.6 NBPEL. I know if I ram it home it would likely feel big, but it doesn't look big to me. For reference, I'm also 5'8" and about 167 lbs.
This is also one of the reasons I am shooting for hopefully 8" BPEL length by 2016 and at least 8.5 BPEL overall. That would put me at 7-7.5" NBPEL, and I'm pretty sure that would be seen as big/endowed by all.
Yeah 7 NBPEL looks large. So whatever produces that is great. I'm surprised you have 1 inch of fat pad. I'm also 5'8 but I've slacked and slipped up in weight and now have a stupid fat pad there. When I was down to 174 a couple of years ago I had very little fat there. I know people's bodies are different though. Maybe you have less muscle. I'd love to be 167 again. That's been a super long time. Well really most of the weight I put on in the pas 7 months. Grrr...It was fun but now that it's getting warm outside, I want to get it off.
I just want my 7 NBPEL. I know BPEL is helpful for accuracy and medical research but that stuff doesn't make me feel better. Oh it's longer but covered up. Who cares? LOL Just give e my 7 on the outside and I'm thrilled. You only have 0.4 to go. Congrats.