I don't know how good a tip this is, since I haven't managed
to go more than 10 feet or so, but I've been learning with support
from the parallel metal bars of the cafeteria entrance maze at a local
junior high, on weekends, of course. Just moving back and forth in
the maze didn't help much; "launching" myself from the end, after
a buildup, gave a noticeable improvement.
Craig Milo Rogers