I think we've seen one khan super jackpot in a ton of plays at my buddies' place. Also, closest we've seen is one shot left on final battle, though it's not entirely rare to reach. But as far as scoring shots or strategies, I don't think it's terribly complex. Pretty much left flipper, I'm going for scenes, and right flipper, going for battlefield to stack extra balls (on his, unlike some, you can't just keep the upper flipper out and send a loop shot to the khan to start a scene). Ramps are too dangerous to warrant the scoring from vengeance. Up to just over 4.3 bil with this strategy, though no tilt bob and non-functioning battlefield drop target so it's always ready.
I don't mind scene-heavy games, and TS plays fast and furious. Wouldn't mind if there was a bit more scoring available in the multiballs - to me, they're most valuable to collect an extra ball when lit/when you need it. Hard to hide balls with no pops.