Fei Long is something else.
His Rekka's cover good ground, but against a Sagat player, he can easily punish just about anyone.
Make sure you use his (dnno what the kick name is). Its the attack that makes you do a little more than the HCF motion. The EX version can go through fireballs i think. Lemme check.
SRK is an amazing forum, but i hate its stability, or lack there of. Server Busy all day long.
Guides: Street Fighter 4 Strategy Guide -- Moves, Combos and Tips -- EventHubs.com
Really cool. If you really care a lot about getting good, try to remember frames and resets. I have a pdf guide that helps with it.