Final prep before using fuel tank sealant and closing everything up. Deburred all holes on skins and ribs. Primed a bracket (no interior parts in contact with fuel to be primed). All skin holes dimpled (baffle rows already countersunk) as in pic 1 with the DRDT-2. All ribs dimpled (pic 2). Lastly, all mating surfaces scoured with maroon pad to help with proseal adhesion. As per other builder recommendations, I taped off areas to be scuffed (see pic 3). Bears in background kicking Saints' asses.