LC:
> (For instance, I'm almost certain that my players are going
> on the Shiprise HQ in 1619/1620, despite it not supposed to
> be happening till substantially later.
> Interestingly, since it is the HeroPlane, "going on the
> quest" and "seeing the results"
> don't have to match up exactly.)
While this is true, I'd suggest you still have the Cradle before the
Shiprise. And bear in mind the effects that the Cradle has on Pavis.
Time dilation, fine, but time/causality reversal gets very confusing.