At some point you get good enough at this stuff to descend a staircase, quickly, at a busy train station (somewhat; can't be too busy because then the stairs are too crowded) with no arm rests in range, while you hurry to the underground bicycle storage. There you take two steps down at a time, then get your bike up those stairs (bike in a gutter) in the same way, and not miss a stride when you jump on the bike to cycle to school.
It also feels really efficient. I've never fallen yet doing this stuff, though there have been cases while descending some staircase where I came a bit closer than I'd like.
Addendum: I don't count stairs, by the way. Apparently not nerdy enough.
Really kind of scared a friend once doing it down stairs... he was pretty concerned for my safety!
You have to land on the edge of the stair below so you "drop", then rinse and repeat.
If you do it constantly, you only have to support your body ( but you use your weight to fall, so don't support it too much) and slide with your hands.
If you can't do it the first time, land with your foot normally and then always turn them slightly to go to the stairs below
Kinda hard to explain
An other variation would be to keep your feet in a 45° and then keep doing and landing on every stair edge
Never seen someone else doing that, it's insanely fast if you can master it :D
It's not dangerous i think though, wooden stairs works best indeed :p
I would like to learn to do it hands free, one foot in front of the other (forward and down to the next step). I can surf a bit without grabbing the rails, but only rarely make it to the bottom. Definitely needs the perfect wooden stairs to get maximum flight time!
Three steps at a time can be a bit ‘shaky’ at times. Especially as I usually try that when tipsy. Not fallen yet though!