Never been in one, cannot verify. Didn't even know they cruised that high. Anyhow, a typical Citation X say from Denver to SLC is one hell of a bumpy ride over the rockies, luckily its a very short flight.
Citation X is kind of a special case; for that route, I'd probably go with a turboprop except for "ramp appeal" and maybe in-flight noise. Citation X is exactly the wrong aircraft for that run, unless you are repositioning it or need it for later, or own it; it's the wrong choice to charter really for super short runs where it's all climbing and descending over mountains.
