@Mush, it's "perpendicular" in English, so pretty much.

I think the biggest tip for Boarder's Balance is... learn to balance stuff! OK, so you can do lighthouse, but you're going to have to be MUCH more interactive to maintain a Boarder's Balance.
-Balance a broom on your palm, and walk around your garden with it balanced.
-Now do the same with something half the length.
-Same again, but this time, keep your feet still, and maintain the balance by making over-compensating movements with your hand only.
-Now get shorter again, say 30cm or less, and repeat all the above.
-Now get lighter.. a long pencil-shaped thing, say 15cm.
-Now a lightweight teaspoon.
By now you're having to make very fast, small compensatory movements whilst maintaining the balance on a short, lightweight thing. That will stand you in good stead for the ken balance.
It's bloody hard.
...and having said all that, no, I can't do Boarder's Balance. But then again, it's not a trick I've ever put any time into.
ObJuggler: I bet Olli could learn it
Olli Groszer with Archaos - juggling videos hosted @ Juggling.tv