Jayseas, I really like your prototype. I have a personal design that grew from the sig Banshe/Twister. As for the size of the flaps, I would cut your solid stock 2 rib bays from the tip. 2 Benifits, the tip would be hooking everything, for what the last 6inches does it isn't worth it. Also the hindge line disrupts the airflow, it's nice to keep the outside 6' flying as smooth as possible.
Please take this as a possitive suggestion, it is your design. And it looks great.
-Snuts-