
Lets see: I must be the only moron who starts off with
Reverse Shark Attack combo(33B+K Hold A+B). I follow this up with BT B since it covers a lot of ground if they run at me thus giving me the option to start my offense from here. Point is.. Shark attack combo isn't a TERRIBLE starter, just probably not a good one to use repeatedly. The overall probably is you don't have any real advantages except for maybe hit confirming the first part of this move the 33B+K part. Its -4 or something like that so you have some options here. Try it out maybe once or twice and never again, but who knows I never even take my own advice with that start up lol. I'll start off using that move and randomly get spiked to the ground you can get up so quickly that you can YOLO grab them or 6k for free afterwards, this games weird like that.
Lately, I've been having luck starting off using single A into MCF. I don't know.. but I swear this doesn't feel like -8 on block..
I'll also Flea into 2A+B(Super tech crouches) then use A or B.
4KB is a decent starter and the second hit has a tendency of hitting people who are stepping. Keep an eye out if you get them with the second hit. You get a free Door Knocker+2k after it. Its hit confirmable and you can usually react to this.
Aside from all of that, how you start round will always vary on your opponent. People have habits, old habits die hard.. Based on these you should eventually figure out what works best against them, so say after seeing what you see, you realize that the starting move is 11B and its starting your offense against that guy right, then keep at it!