Thanks Guys,
I'll probably shoot some Future over my silver and metallic paints to see what happens. I was originally (and still may) use Testors Silver or Dupli-Color Silver out of the rattle can rather than Alclad or MM Metallizers. I wanted better durability than Metallizers and I not sure I want to go through the hassles of trying to remove every nit to make Alclad look good. (As a side note, since I'm doing a B-36J and they were clear coated, they lost some of the metallic look anyway).
My other issue is the decals. In most models you paint the aircraft, clearcoat with Future (to prevent silvering), apply the decals, clearcoat again, apply washes/pastels/etc. and then dullcoat. My intention for my B-36 model was to paint it silver and shoot the magnesium areas with dullcoat. I've already tested it and the effect is pretty good. However, the big US Air Force decal goes over the magnesium. If I coat everything in Future, apply decals, then reapply Future, then spray dullcoat on the magnesium areas I'll have some decals that are glossy and some that are flat. I wasn't sure what everyone else is doing to keep their decals looking correct, even if they aren't using dullcoat to give silver paint look magnesium.
Does everyone just apply decals over the metallic areas and not overcoat? This may force me to spray Alclad magnesium or find another slightly darker silver paint.