James,
Well, maybe you'll have knee banging experience like I did with a home built. I built two 'Pen Knife' wings (36" span) with perforated leading edge D-tube covering for lightness, Then I built a modified Pen Knife fuse, and mounted the wings top and bottom, about 8" apart, top wing about 2-3" forward of bottom wing. I enlarged the rudder, mounted four servos with pull-pull on rudder and elevator, mini servo on throttle, and an MVVS40 and minipipe in nose. Thrustline is straight down the midle and hor stab is on t.l. I balanced it right between the spars of top and botom wing, seemed logical to me. First flight, it gets of the runway and sticks the nose straight up, as I give down elev it hesitates, then pitches around to nose down, well, it was walloping along, getting further and further away from me, I was so bussy trying to control it that I couldn't turn it around. I finally get it turned around and 'fly' it towards me and make a successfull landing in the grass. I received standing ovation from everybody else at the field he he. Needless to say, it was VERY tail heavy. I moved the elevator servo forward in the fuse, but it is still extremely tailheavy. It has control interaction like nobodys business, when touching rudder it pitches wildly. It flat spins great, but it is an exercise to fly. The good thing is, that as one gets off the power, it calms right down and glides in for a landing.
I don't know yet if I am going to try to fix this plane or just fly it the way it is, makes everything else easy to fly he he.
DKjens