Strangest thing happened to me while I was at Aquatopia at Camelback in the Poconos, PA. I'm riding their water coaster which has 4 sections of steep drops and then an extremely powerful water launch thing. See here. It's the blue, yellow, black, white waterslide.
After going down the first drop and then struggling to make it up the 2nd hill, I questioned that something was awry. Turns out I was right, as the next hill I went up was the hill of my rollback! I got very close to the top, but the water jets couldn't get me through the hill. After about 5-10 seconds of just kind of a dead stop on the slide, the jets shut off and I rolled back down the hill.
Definitely an interesting experience, especially since I had to walk down the spiral staircase after a lifeguard came to my rescue lol.
Anyone had a rollback on one of these before?