I am coming to the final stages of this build with the covering completed with Koverall and a few coats of Stits Poly Brush applied. The shine is coming up on the Stits now so it is close to color time. The color will be Stits Poly tone.
This is the second airplane I have done with this system and am getting a little higher on the learning curve. I have learned that sanding is not necessary during the first few coats of Poly Brush. Just keep spraying it on until it shines. What is important is to have a well sanded base prior to covering for a nice smooth surface. Carefully block sand the wood before covering to kill the high spots and identify the low spots, circling them with a pencil and fill them with vinyl spackle. Then sand some more. Take the airplane out into the sun shine and you will be surprised of all of the defects that show up in the surface that need attention to create a fair surface. I learned a neat trick while covering regarding trimming off the excess material to avoid frayed edges. Wherever it is to be trimmed, first apply a thin coat of Balsarite and let it dry for a couple of minutes. That will bond the fibers together for a nice clean cut. After cutting off the excess, gently iron down the cut edge with a low heat iron. Also, use a new stainless steel Xacto blade. Koverall is hard on blades, dulling them quickly.
I can't say that this project will come out perfectly but it will certainly look above average. I look at my finished models and tell myself that I could have done a little more to make it look even better. But where does one stop? It's just a model airplane and it will eventually - well, you know. Another one can always be built.
With a little luck I might get this thing in the air this month.