Online protip: No one can tech throws. Like, freakin no one. Even purple throws. Makes me so sad.
Abuse and reuse. :V
66 > 3C is a lot easier to do the higher your opponent is when you throw out Hungry Coils since it throws them closer to you.
Mizuchi isn't really height dependent. As long as you get Hungry Coils, it'll combo. It gets harder and harder the lower they are when you throw out HC tho.
If people are baiting your 2C, you could just go for 5A. It's actually a really good AA and it's recovery/startup is a lot faster than 2C so you won't be in as much trouble. If you know they're going to jump up though, you probably have enough time to 214D~B.
What I do when I'm trying to rush in and people are blocking my chains is to stop my chain before it hits them and fly in. j.5B usually has the length to counter people who throw out an AA in a panic, although tbh, I only do this if I really need to damage my opponent since this is still unsafe. If I have a life lead, I usually zone and wait for him to come in. Much easier to catch people's mistakes that way and get my knockdown.
OH, there's also 66 > Command throw. Pretty much opens up anyone's defenses.