it does sound like u messed up a syncro, a freind of mine has a integra, and it did the same thing, we dook it apart, and the syncro was off alined, and chewed up, so, i would say, rebuild, or have a professional do it, also, what the hell posesed u to do a hard launch on a wet field??
i am not trying to mean, because i have done it too, lol