I have a problem doing those 90-180deg corners on the curbs.
Sorry if I miss the correct description.. but you know, the sloped corners in a bowl or halfpipe.

Especially my front skate seems to have a will on it's own, starting to go up on the slope, throwing me off balance.
Is it mostly a matter of throwing the body 'round and have the skates follow troop, or do I miss something about skate technique ?