I use Bel decals alot and like them
just follow the directions that are supplied and you can experience great results..
the starter pack (both white and clear) would be my suggestion
to start with
as with any waterslide decals( or stick on for that matter),always apply them to a glossy surface even if you want a dull or satin finish in the end
apply the flat or satin afterwards ,or silvering can be a problem
for example,,,,.look at the facecard on the estes cluster bomb you can clearly see the decal stands out .thats the result of applying a glossy decal to a flat surface.