Excellent Starfire build thread can be found at http://www.rcgroups.com/forums/attac...mentid=2238867
However, it shows the flaps hinged using Robart hinge points. Don't know if the offset hinges are something new that YA has added or something you are choosing to implement, but most typically you want the pivot point of the hinge to be close or on the same axis as the hinge line.

This photo should give you an idea of the hinge location.

{akamaiimageforum}/upfiles/56138/Ga78386.jpg