Hi!
I've decided to build wooden masts aswell, mostly due to the difficulties of finding the right aluminium qualities, but also a wooden mast on a wooden boat - it just can't be wrong, can it?
I'm planning on doing the masts hollow for a halyard and to incorporate a groove (in wood) for a boltrope sail to slide into the mast.
The sails will be of slab-reef type but have vertical battens for making it possible to store the sails wrapped around the masts.
So far this is my plan, I hope it will work...
As for the 3-piece mast this means you will have a slip-on sail and then you have the reefing thing to consider (easy reef - bad performance) and I recall someone stating that having multi-piece masts only meant that you have more pieces to look after...
btw I'm building a CS-17 (just glassed the hull) in Sweden, and the raid in Finland does look interesting!
best of luck with your decisions/build!
/rune