Wouter
For an "under size" sail plan, would you want mainsail only or Main and Jib.
Consider an F16 where you can have (sailing single handed)
Mainsail + mast = 15sqm or mainsail, jib + mast = 15sqm
and both boats carry 17.5 sqm Spi.
What I am trying to find out is
You can ONLY have 15sqm "white" sails (as they are sometimes called), do you want one or 2.