My problem/concern is that I am wider around my chest than around my waist. I would assume this is the case with most people? e.g. the BB extra slim fit is perfect around my chest, but it is baggy around my waist. Is this only remedied by darting or could it have been made differently?
I have about a 10.5" drop (41.5"->31"...uncommon I know, cue the dumb comments but w/e idgaf) and the modern tailor shirts, after some tweaking and a few practice shirts, worked out great. So you should be fine there.