I'm very happy with what I have and I think everyone should be, because you cant really change anything. But, since this is a site about cocks, what would you change if you could? For me, I would make my head slightly smaller and my shaft slightly thicker so the head would gently taper into the shaft. My shaft already tapers to a thicker base so that would make it a nice taper from head to base. It would make penetration a bit easier from the beginning and make blowjobs much easier and more enjoyable. Again were talking a 1/4 inch or whatever so pretty much not something anyone but me would notice.