Im actually a very competent Shun Di player. I found the biggest thing you can do is learn to make him a faster character, move around a fuckload, work his stances. Take weird pauses during your motions to work with the natural misdirection of his moveset. Play like a drunken master sir. Also, if you dont already chug whenever at all possible. There shouldnt be a moment free where you arent.
He's a whole lot of fun.