I would shim the board to get the gap out. Your wing is only as straight as the board you build it on. There are too many ways to screw the wing up with a perfectly flat board (ie sheeting it without adequate weight), than to build on one you know is 1/16th of an inch out.

Here is the last posting on building boards. http://www.rcuniverse.com/forum/m_13...tm.htm#1326727

John