Nice was practicing the heel-toe technique today. It's so easy!
Just need my double bass pedal (getting for xmas

), then i'll be away! Figured by using the high hat pedal as a 2nd bass pedal (same sort of feel if you don't have a double pedal yet :P), I could do some pretty fast stuff straight out with that technique.
But I admit I'm gunnu practice heel down and heel up as well, as you said feels more secure, and imo easier to keep time (When I get my pedal of course).
Can't damn wait til I get mah pedal! haha