Yes, I'm also building an RV-9A QB (but slow assy ;-)

True, the usenet news groups are generally useless for real questions
and answers. Try the matronics list and Vans Air Force, though I find
the latter too reminiscent of high school cliques. VAF has useful
archives, but the matronics lists, especially the aeroelectric
sub-list, have better technical answers.
--
A treatise upon human natu It is not contrary to reason to prefer
the destruction of the whole world to the scratching of my finger.
~ David Hume