Regarding drawing, doing forests without outlines take forever. If the trees are far enough away that each tree can be condensed to a single or double line, it’s not bad, but if the trees are close enough that some branches need to be included, my rear end gets numb.
Also the crest of a peak where the rocks meet the sky doesn’t resemble anything so much as a hard line. I think I could do it with conte someplaces, like Red Mountain 2 and 3 (actual names), but other places would require weird colors.
And then I’m carrying a conte kit (conte, spreaders, something to dab with) etc. vs just a mech pencil.