Just a thought. Since you are an experienced flyer already, you may want to make a slight change in your build. Unless you plan on using the Kadet to help others learn to fly, I would reduce the dihedral by at least 50%. Since you already know how to fly, you don't need the self righting to be nearly as strong as what the stock 2" dihedral will give. I'm working on a Jr, a smaller version of your MkII, and have removed the dihedral all together. Since mine is going to have twin floats and larger ailerons as compared to a Mk II, I felt all the dihedral wasn't needed.