I think one of the best things is to watch videos of Fuudo and other good Fei Longs to understand how they approach these matchups.
Its important that you establish that your antiair game is good so your pokes and rekkas are more effective in the neutral game.
In terms of more reactionary or not, many times I feel the best way to play Fei is to be reactionary, especially if you can whiff punish well with rekkas. It really changes how the opponent plays the match. But it also depends on the way your opponent is. Some people will keep jumping at you even after you’ve anti aird them four times in a row. Others will play a very cautious game and you will need to use your pokes and rekka very well.
Interms of making one mistake and getting bodied that’s just how sf4 can be with vortexes. It doesn’t help that Fei’s SRK is 5 frame startup so he’s open to more safe jumps and setups.
When in doubt block and don’t do anything risky on your wakeup, but also know you have mk Chicken wing and ex chicken wing to help you get out of some setups.
-Starts at 3:51
-Tostada Press is hard to anti air but its very easy to punish on block with rekkas. Block and punish them and you’ll force the El Fuerte player to play a very different game.
-Focus attack is very helpful here but be careful because the Seth can counter you abusing this with tanden engine.