It wont work for 2 reasons:
-There is a server check on jump distance. Flying and Jumping use the same protocol, just a different visual effect.
-The co-ordinates between the canyon are innaccessable. Even if it were 1 co-odinate wide, you wouldn't be able to jump over inaccessable co-ords. Try in lab for example, you can't jump iver small walls.
And i think it would take a very large shift to get such thing anyway. Why not use my teleport hack?
i ahve a big *****