Hi Dave

It looks like there are 2 distict types of sailing foilers evolving

The true foilers designed to raise up above wave tops ,-
theses generally with surface foils mounted on the sides of the craft like yours and the larger Aussie cat foiler -
{can't wait to see the 60 ft version for a transatlantic race attempt } ---
and the semi foilers which seem to be thru hull canted board types ,-like catri http://www.multicascos.com/ingles/catri_english.htm

These seem to partially raise ,-or 90 % lift ,-which may be the ideal multi use craft type for ocean conditions , designed with proper hull form .
The more extreme forward locations of foils and masts may be the next area of development needed for these craft to overcome top speed limitation ,--developing some lift from the sail plan as well as the foils .

there are some other good examples of thru hull canted board types ,-in smaller cats ,-do any have references or design sites on these ? -thanks -

Seems like the forward foil/board rake along with cant of the foils or boards would also improve the angle of attack as compared to craft angle and attitude .

Is there an established ideal rake and angle degree of cant,--the verticle from horizontal surface {end forward view} looks like approx. 45 degrees
and also forward rake ,-looks like this would vary with bow down tendancies of hull design ,--probably why so many of these designs have huge bow sections and narrow sterns , which not only keeps them level before lifting but also assists in dropping off the foils suddenly .
Would like to retrofit and experiment with some canted boards and shapes on existing cats on the thru hull type,
Some designs have already had success with this , might be fun to try to take it to the next level .

thanks
Carl