OK, I’m’ going to bite b/c the first respondents took enough shots at the original post.
I’m a Gouki player, too. I know that the only way for me to win is a decent mix-up. From what I’ve read, “I try to do meaty c.lp or c.lk,” your only experience with meaty hits is SFIV. In SFIV, every character moves at the pace of a snail “shaking hands” with slug. That’s why you can meaty jabs & shorts. In 3S, you need to meaty with something that hits for a longer duration. In short, you’re using knowledge from polo & applying it to F1 racing. Good start, but that’s it. Always bring in what you’ve learned from other games, but be ready to realize what does and doesn’t work. Play around with those tutorials more, and you’ll see that there’s a more strict timing.
Search the GOUKI thread. I even linked it for you.
Gouki’s meaties with normals:
st. cl mp
st. cl fp
st. close mk
st. cl rh