I built one from the Bluejay kit and I've been flying it for a year now. I built it exactly to the plans and couldn't be happier. It's the only plane I take to the field.
You can see mine here
http://tinyurl.com/2x8ceq , with a few notes on the construction.
The dihedral on the plans seems to be about perfect. The only snag encountered when building was a small issue with incidence that was easily correctable. Check my notes in the other thread, you may want to delay drilling of the wing dowel holes until you adjust the incidence. I had to plug mine and redrill them.
After a year of flying the plane I have done a little adjustment of CG and mixing. I've moved the CG back slightly from where it's shown on the plans (do start with the plan location though!) I've got it perfect for my tastes but the plane doesn't like to sit on the nose wheel with the tank empty. If I was to build another I'd probably move the main gear blocks back a quarter inch or so.
Knife edge is very flyable without mixing but to tweak things to perfect I've got 3% rudder mixed to ailerons and 2% rudder mixed to elevator. It now holds knife edge across the field with only rudder and point rolls are beautiful.
I do love this plane. You will too!
Dave