An assy is a kite, upper girth is ~ 180%. You'll not be able to point with it unless you have very flat water
and light air, maybe 55 or so degrees and you will still need to fly a staysail in the slot to re attach flow to the back of the main. The assy is really designed for broad reaching with awa of 85 to 130 degrees.
If you want to point in light air you might decide to build a medium 1, maybe 145 to 153% to replace the #3 on the furler
. White sails
are not really good candidates for light air downwind. Up and down in the light stuff requires two purpose built sails
, a number 1 for upwind work and a kite for downwind work. Up and down in a breeze the #3 if fine. Sorry, it's just not possible to get around physics.