Hi Darren
3/4" is about standard. I cut mine at 20mm and then bead and cove them. That fits fine to most curves. However, you don't have to have them all the same size. You can have wider for the deck where there is no tight curve. You can have narrower for the tighter curves around the chine area (if the Mystery has them).
I'm just across the Bass strait by the way.
JohnK

: Hi,
: I have recently acquired some strips of Western Red Cedar, so am shortly to
: order the plans for the Mystery.
: The strips I have are 50mm (1.9") wide at present, so need to be ripped
: into 2 or 3 strips each for building.
: So the question is...do I rip into 2 strips of just under 25mm (.9")
: each, or would 3 strips of 16mm approx (.6" - so just over 1/2")
: be better?
: Whilst I'll lose a little more wood with the additional cut, and it'll be
: more work (more strips), I figure they'll conform better to the curves of
: the hull and be worth the effort.
: Any thoughts on the "optimal" width?

: Thanks in advance,
: Darren
: Melbourne, Australia