The rite angel sanding to get the curve just right. I found that if you sand at this angel up and down and then an X in the opposite direction the curve is created and is straight in the longitudinal direction as well. If the air board is jumping then the high spots are sanding down.
I added micro to the spare area and will sand in next time I’m in the shop. (Co-Pilot wing)
The Speed brake got some loving too and a shot of primer to help out. There are some spots that will need bondo to finish up.
