Sounds as though the carbon mast option may be marginal for double-handed sailing and we want that option.
I wouldn't say that.
You have to appreciate the fact that both alu and carbon masts have their own strong points ... and weak points. It all dependents on the way you are going to use the boat. At this time I wouldn't call either superior overall over the other.
I feel that the alu superwing mast is better when switching between doublehanding and singlehanding alot. Carbon on the other hand is easier to right and can be designed to be better for only doublehanding or only singlehanding but not both. Of course when doublehanding alot then the easy of righting of the carbon mast is indeed marginal as the alu mast is very easy to right with 2 people as well.
At this time the alu superwing and the mainsail designed and build for it have 15 years of development under their belts. This alone will make the alu superwing rig a very attractive option especially since it is so inexpensive. But carbon masts hold lots of promise.
So what do you do ? Specify your wish list first and then make a budget and then decide.
Wouter