Another thing I noticed is that a few hairs tend to stick to my glans and even constrict and distort it sometimes, causing me to miss the target when I pee. My flaccid penis is only 2" long, so the glans tends to be immersed in hair most of the time and the larger, average size penis might not have this problem.
The hair doesn't bother me too much when I masturbate as I mainly manipulate the area centered on the top rim of the glans with my thumb, but when I do wrap my hand around my 4" erection the hairs are a little troublesome–but I only do this when I'm getting frustrated due to lack of sensation and significantly delayed orgasm (which is actually pretty often).
So my experiment with natural pubic hair growth continues, at least until the hot weather of summer arrives.