Just curious what your fin set up looks like and if the board is any good in 2 or 2 ft choppy water.
Looks like you have to switch your feet when you turn, just like on a windsurfer.
I don't see those boards around here so I'm kinda curious, I kite in light winds a lot.
The Advance raceboard 2009 has 2x25 asimmetrical fins, the handling in choppy conditions in very good, no problem even in downwind high speed, this is the best board I have found to go upwind and in moderate downwind degees (lasco-traverso) but not very good in straight downwind (i don't know the english word, in italian we call it "poppa") as the board is too narrow.
The new version 2010 will be larger and quadrifin, I've tried some proto's this winter and for sure it will be better when going straight downwind and better upwind but probably will loose some speed at traverso (90°), but a long work trimming fins-set will be done as the new board will arrive (beginning of april) in order to get the best compromise between speed and upwind.
Of course you have to jibe and switch feet when you change direction, all the raceboard are made this way, no way to seriously race with twintip boards even with big twintips like Flydoors.
About the kite (Foil vs. pump) I can say that I often train with a friend that has a Flysurfer speed3 19, his kite has the advantage to stay in the sky easily with 6 knots instead of mine that requires 7 knots but over this limit (7-8 knots) my Kaiman 15 makes better angle upwind.
As in Italy the races never starts under 8-9 knots I prefer a LEI kite, but if your goal is to lower the lowend as much as possible take seriously in consideration a Speed 19.
I like the idea of having a "light" wind board that still works well in chop and higher winds. I won't have to run to the beach to grab a regular TT when the winds pickup, unlike my huge TT
The only thing I don't really like is the big long fins. I'm going to wait for further development before I chop my windsurf board in half though