Re: reliability, the buzzword for Intamin rockets. Let's see, Stormrunner, Rita, etc. seem to indicate that whatever Intamin HAS learned about this propulsion system works well on coasters up to say, 82 mph, plus or minus...coasters well over 100, the two that exist anyway, have had SERIOUS problems with showing that their launch systems are safe and reliable...
And some of them look FUN (Kanonen in particular)... :)