There's about 15-20 in this entire city of 100,000 that can do more than a boardslide/50-50 on our skatepark's handrail. I think 500 isn't a far off number (people who find dismounting a handrail to be a cinch) Maybe 500-1000 people in the country that can smith/nosegrind/blunt etc. a 10+ handrail and say the landing is no problem at all. It's not the easiest thing a human being can perform. It definitely ranks among the hardest (in the world of sports). Most handrails drop off at about 4ft from the ground, which can seem like light-years at times & present a nearly impossible barrier for some tricks, at least from my experience. I'm no professional, I still know my way around a board tho. You must kick total ass.