Quote Originally Posted by jiott View Post
I know the build manual says to drill the bottom rivet all the way thru, but most people (including the factory SLSA) only drill thru the top cap strip and then use a shorter rivet so nothing shows on the bottom of the wing.
We actually drill through both capstrips during the flaperon pre-install prior to cover.. After cover we do not open the bottom hole through the fabric. That allows us to get a rivet with enough grip length.