I've been doing quite a bit of looking around now (naturally!), and I've noticed quite a few uncircumcised guys have spiky little nubbies around the edge of their corona. I'm wondering a few things:
a) if those form because the foreskin was never removed?
b) do they add any sensation?
c) are there any cut guys with them?
d) if there are cut guys with them, I'd like to hear some comparisons of the sensation from both cut and uncut guys