--I seem to have that gene, which I believe is inherited on the same allele as the ability to curl one's tongue upward aroung a midline axis and the ability to taste phenylalenine.

Seriously, I have hair on my arms that exceeds two inches in length. I've found chest hairs longer that that--and in different colors along the same shaft. (Robin Williams has nothing on me.)

My body seems to put a lot of metabolic effort into growing this stuff. Makes me wonder if it wouldn't be possible to direct some of that energy into other realms such as nerve regeneration.