it spins round a centre point, but you can't tell theres any side movement coz your eyes can't see it so your brain doesn't register it against the centrigual force!
its pretty cool, i felt well rough when i got off!! i was the engineer as i recall

that test track one is cool too
May is the best time to go, we went and it was really hot but zero rain and no hurricane risk

also its dead, the most we queued for any ride was Jaws at universal about 35 minutes. Everything else was either 5 minutes or straight on
Kracken is the best at seaworld IMO - wished i'd have gone busch gardens though