You will have to build the Flap so might as well install and build for it with extra servo. Lock the flap down by some method, perhaps install a second horn at servo mount and install a push rod to flap to hold it steady? There is instructions in the kit for not putting in a functioning flap.

Most of us modified the rudder shape, some did lightening holes in fuse tail, made ailerons bigger see the following post. Nearly everyone agrees to install nose gear mount with blind nuts not wood screws as specified in instructions. When building wing read the instructions. You start by NOT gluing in the spar pinned to building board. Myself and another glued the spar in and had to fix it later.

See this link for what we did

[link]http://www.rcuniverse.com/forum/m_3421799/tm.htm[/link]

Jump on that link and share your experience, questions and results with us.