I put up the paint booth, and sprayed on two cross-coats of Poly-Brush, followed by two cross-coats of Poly-Spray, followed by wet-sanding with #320 on the rudder, stabilators, elevators and gear. The Poly-Fiber manual says to fill pinholes with Poly-Brush with Brush Retarder added. I tried that, but that left essentially drips on the Fabric, which required another sanding after viewing the results of the next coat of Poly-Spray. So, another wet-sanding and another coat was required. Fortunately, I only tried the pinhole recipe on one-side of 4 surfaces, so I didn't have to do as much sanding as if I'd done all the sides. It turns out that sanding alone does a better job, anyway.
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