TNT on large paper

I read somewhere that comic book artists draw in large format, and reduce at publication time, in order to show a better precision, while I was exactly doing the reverse, drawing small and expanding it later :/ I gave a try to draw on a larger paper, but I find it, if not more difficult, at least a different gesture. I think I will stick to the small format for single portraits, and maybe move to larger paper when/if I start drawing sceneries with multiple characters.