Hello Sam,
I sail an Auscat Mark V. It is a pretty strong boat even though it is not designed for a spinaker, but with the windconditions in the U.S., relatively light compared to the European conditions you should have no problem sailing it. The dousing with the Skunk setup is a lot easier than with the EO snuffer I had on my T 4.9 and you have less windage.
Regards.
Arjan