Those cardboards are still a good board mate. Depends on size though, rocker and flatness.
Talk to the guys they are a wealth of knowledge for these conditions, and someone like Jankie rides in them everyday.
Gotta remember not only are the winds lighter, they have less punch than our colder dense air. A 15 knot breeze here is very different to a 15 knot breeze up there power wise. Gotta compensate for this.
ps lose a few kilos would help...lol