To calm people's nerves, let me assure you the "big drop" is not that big. It is fun, but not as big a sensation for me as either Splash or Jurassic Park. Those rides, your car is barely moving until it goes over the hill, then its all acceleration. On this ride, you have a little speed after the Yeti projection so the acceleration (and subsuquent stomach sensation) is lessened. Also, the last 20 feet or so of this drop is banked to your left, further reducing the sensation of a pure drop.
In my opinion, the drop is definitely bigger than any on Thunder, slightly bigger than the biggest on WDW Space Mtn, but seemingly smaller ( or at least less sensation) than the hill on Splash - for the reasons I have listed above. It is eefinitely less sensation than the hill on Jurassic Park or, shudder, the scary Ripsaw Falls and its unsafe seating!
Ride it, it is fun but not wild!