RE: UltraSport 40 Wing Saddle Question
I believe that the key is - Is the wing incidence correct?
I have an Ultra Sport 60 that I built from a kit a few years ago, and for that plane they showed how to make wing fairing to blend the fuselage and wing to each other. Is that included in the 40 size? If so, and if the wing incidence is correct, you will be able to eliminate - or make very small - any gap that's there now.