Pumped Bulges

For big cocks… the center seam is always a pain in the ass. It either imprints along the middle of the shaft or it causes unwanted friction.

I mean, how difficult is it to make a pair without the center seam?
I make my own custom underwear and jocks. I have found it is surprising difficult to sew a pouch without a center seam, if you want the pouch to both fit like a glove and swing like a pendulum, when the pouch is made from ordinary spandex or other stretch fabric. Pouches with a seamless front just don't hang the same. I believe it would be possible to knit a pouch to the correct shape without a seam, as some classic jocks were made, but I don't have the means to do this. But I have learned to make the seam as gentle as possible on my cock, to avoid the unsightly crease in my cockhead when pulling it out.