WATAJK you are talking about 2pac paint as in a solid means you spray the colour and its shiny already and the other system is clear over base which is better as you said last longer when applied properly.
with acrylic paint system which has been used by tiksie, its a clear over base system as well just does not last as long these days because they dont make acrylic paints as good as they used to on the old school cars. just have to buff it after painting and comes up with a reall good finsh but always have to polish it to give it depth or it will just go to shit!!!!