Trainwreck + Haze = Couchlock + laugh your ass off high. If I can only have one though, I like Sativa more, because everything is funny as hell. Indicas tend to knock me out too much sometimes. but, if I hit a fat bowl of Indica late at night, I can feel it the whole next day. I tend to do bettter on Calculus quizes when I'm on a day after buzz too.