I shave for several reasons. It's easier to get suction when I do therapeutic pumping. When I use a cock and ball ring, the hair doesn't get tangled in the ring. Lastly, my skin is more sensitive to touch with no hair in the way.
I daily use a Gillette Fusion razor in the shower. It takes only a few seconds and I rarely have nicks. After-shave cream helps reduce any itching from stubble I've missed. Hair conditioner works well as a shave cream and/or as an after-shave balm... rinsing it off, of course, after application.

Another thing that helps with getting a close shave is to shave against the grain, just like you would with your beard. Yes, your pubic/scrotal/shaft hair does tend to lay in one direction; you'll just have to look closely to figure that out for your own anatomy.

60's. Married. Occasional ED offset by a variety of methods (VED pumping, foreskin restoration, edging) with Cialis and/or pills sometimes for sex.