I also remember riding this attraction when it first opened in '91, back when I was in the sixth grade... I've always been a HUGE BTTF fan, love all the movies. I don't remember it being so jerky or causing me any pain... of course, back then, it had just opened so it was new, and I was also a kid, so that might have something to do with it, also. I will miss not being able to ride it again.