Ozai isn't a good example because he is boosted by Sozin's CometI never said Fire Spout, I was talking about a simpler move added to the Fire Jet ability so fire benders can access higher areas easier, say someone is using Tornado to float, use the new fire jet ability to get up to them and strike.
See how Ozai flies? He uses the Fire jet levitation ability to get to areas with better aim than a fast pace fire jet.