Originally Posted by Snapper
One thing that worries me is if it becomes too "second nature" - the skills used here are reasonably opposite of what you need at only slightly higher speeds on the road. Below about 15mph, you steer into a turn rather than countersteer, and you also counterweight (push the bike down) rather than hang-off on the inside.
personally, i find cornering that way is often advantageous in the city. i find that it keeps you higher up so you can see better. i also find it keeps your more balanced over the bike so you can react and flick it around quicker in the event of a sudden/unexpected change in riding environment. of course, it probably depends a lot on the particular bike you are riding.
also, as mentioned above, you countersteer at all speeds.