Aero 1? Isn't that the fuel additive? Do you mean the zinc stearate? I do use it more and more than talc and a very, very thin coat on the open bays. But sanding them is a tedious chore for me. I hate it when I cut through the covering at the rib edge (actually cap strip edge) but it happens. I find using 0000 steel wool makes this part easier and does a fine job.