A bigger rig would improve light wind performance but it means reducing sail at lower windspeed.  A HP gets in its groove with enough wind to somewhat unload the ww hull. That speed could be almost any speed if the rig is big enough.  

We have carried full sail to just above 25kts on the wind and to 30kts off the wind but it is already spilling a lot of air in that case and upwind the sheet is held on the winch rather than tailed although we are yet to a find the limit and I never intend to.  As noted before, bearing away reduces sail loads and the boat stays in control.

With the 80sq.m of sail, boatspeed reaching is near or just above windspeed up to about 15kts when the hulls are clean.

Typically the first reef is to just drop the main and sail on the 25sq.m jib alone although that requires sheeting from the leading end of the boom and a shunt in heavy wind can be tedious because it requires two winches be used to control what is akin to jibing as the Aerorig wants to weathercock wrong way round with just the jib.  The benefit of the jib alone is the boat has near perfect balance and there is no risk of getting in irons accidentally.  We have sailed up to 14kts in 25 to 30kts of wind with just the 25sq.m jib.  

I know I have linked this video clip before but in case some have not seen it, it gives an indication of relative upwind performance to a random deep keeler we tracked for a while when sailing one day:

This was just after fitting the original cambered dagger board and hulls were clean so pointing ability was of interest. You can assess the wind condition by the waves although there is some joggle from more wind earlier in the day.  Wind was 5 to 7kts and boatspeed 4 to 5kts while sailing reasonably high on the wind.  A couple of points - A. The cambered dagger board is designed to prevents leeway at 50 degrees to true wind.  Above that there is some small leeway but best VNG is around 50 degrees to true.  Below 50 the board creates negative leeway and broad reaching is about 35% faster with the daggerboard up.  B. The length of the lw hull resist pitching in joggle like this - compare the ride to the shorter mono that is bobbing about and constantly yawing.  I do not know the mono and have no idea the cleanliness of the hull or the ability of boat and crew; sails appeared to be set well and working.  

I am a fan of working out the polars for assessing relative performance of different configurations.  They sometimes throw up surprises and are the best way to compare other than actual racing.

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