Well, I've gotten back from D.C., and have now experienced all three Vekoma flying coasters. So here's my assessment: Stealth - the original, gets points for being the first, but it gets docked a little for short ride time/track length. X-Flight, second in operation, gets points for double-training during the week (a lot of points in comparison to Batwing at SFA). But that doesn't really affect the ride, only my rating. X-Flight has the nice helix and all the good Flying coaster elements, but I have to give the nod to Batwing as the best ride. The high-banked turns, the view of the park, etc., I preferred over the other Vekoma flyers. Given the operating policies of the parks, X-Flight's reduced wait is a big plus, however.
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rollergator - intent on improving the "guest experience" - coming soon to a park near you