Thats comical Bill. My Hacker "is" an ugly stick type plane I use for testing airfoils and such things. Everybody needs one. For some reason they seem to last the longest.
Dago, If your test plane works all right with that radio it eliminates that problem. As said above it could be a combination of things. If I was me, I would take out half the dihedral, If your going to rebuild the wing anyway. At our field I don't Know how many times I've heard ' it kept turning left when I gave it right', usually at takeoff. Iwould put in differential too. Thats where it would help. If you want to know how,just holler. Also makes for more axial rolls on flatbottom or semi symetrical wings. Thats where they're not quite flat bottomed.