Professional looking nose job

What is the best way to get the tips of the nose and tail thinned out for that professional look (on pointy nosed shortboards)? Is it better to foil the nose and tail earlier rather than later? Since I insist on crosscutting the bottoms (makes me feel like I’m shaping rather than just following the blank; stupid, I know), would it be better to skin the blank, get the rocker just how I want it, and then foil the tips down to the proper scale. For example, if I still have to take 1/4 inch off the bottom to get it to thickness, make the nose 3/8ths and the tail 5/8ths and then plane long ways down to my thickness. OR, is it better to leave some room on the tips and hope it all comes together in the end. Sorry to be so longwinded.