Decided to stop being lazy and get some work done in my lovely 100 degree garage. It took a surprizing amount of time to sand down the micro on the naca duct. I then added a radiused corner to the inside of the duct as I was told will aid in pressure recovery. We'll see I guess. I really wish there was a micro system that cured fast and had a higher tg than West systems. I can't believe how much heavier the Z-Grip is, but if it means a cooler "looking" airplane, then bring on the weight. Yes, Burt wouldn't agree. :) After sanding the Z-grip corner, I brushed on my first 3 coats of primer that will be sanded down tomorrow after exposing all the pin holes and filling them in :)