Catching up to the current place in the build, I needed to get rid of the nose cone seam, so I hit it with 80 grit, then 120, 220, and 400 before epoxying it in. Initially it kept popping out due to the air pressure from trapped air. I removed it and wiped off a 1/8" or so line of the epoxy giving the air a tiny escape path, seated nicely, twisted it back and forth to even it out some...