This isn't knife edge I'm trying to correct. This is normal flight. When I use rudder it pitches down. I've been told that this is a characteristic of four stars that is due to the stab being too high.

A few weeks back (I've been busy with non-RC stuff) I was landing it dead stick. I realized I was too hot and high, and was headed for the ditch. So I decide to slip it a bit.

I forgot about the rudder tuck. Now I'm repairing the fuse and a small bit of the wing. I figure that while I'm doing this, I can make the mods that I want to...

Lower the stab, increase rudder size and cut a bay off of each wing. The problem is that I'm not sure where the optimum placement of the stab would be.