I'm picking up my new Getaway on Tuesday.

The air temp is great but the water is cold on the inland lake that I'll be sailing. Although I am not a newbie to sailing, I am used to dingy racing and F boats (Corsair 27) and have no experience with cats.
How stable is the Getaway? My friend and I hope to test it next week but don't really want to go swimming (yet). Under what conditions will the Getaway flip? Assuming I don't push it and keep both hulls in the water, is it fairly stable when tacking?
I'm trying to avoid a cold here.