If gunning it with 2k youll get the gloss straight away AND depth of pearl providing you did 3-4 coats of base min, if aerosoling it, do atleast three or four coats and use as best quality laquer as you can, i have personally had reasonable results with upol stuff as its good quality with low shrinkage and good straight off shine, youll never get gun quality shine though untill flatted and polished and then it wont be as hard.