Just variate from the normal Chipp. He's catching onto your playstyle, can predict what your going to do, etc. My brother is just like that, and it's hard to get rid of. Only way I got rid of that was to play someone else who I sucked with. I understand the rushing in part though, I tend to do that alot as Bang, which vs. certain characters will have me but the lack of hit range (minus nails) makes it tough for poor Bang.
And for reflexes/timing that you asked earlier, the only way is through practice.