I've always been very happy with the TM Lewin tailored fit. I'm very thin in the waist and they sit pretty well; when I'v got the money I'll go Turnbull & Asser MTM but right now Lewin does the job perfectly
Best Slim Fit Shirts - Page 2
I'm a runner (or on the run?), and have a 40" chest and 32" waist. I've had lots of TM Lewin slim fits and they fit me well, but they're not the best quality cotton in the world. Some are good, but some go thin quickly, and some are a battle to iron.
I've recently given Harvie and Hudson a whirl and they are a similarly great fit, but the cotton on the first shirt I got was a lot better than Lewin's. I'm waiting for an order of three to arrive now, so hopefully they'll be the same.
It's not about how you *look*, it's a matter of proportions. You have narrow shoulders, how cut your abs are is irrelevant. Different context. A 6" drop is not large.
this is the case. 38" chest is tiny. Nevertheless RLBL should fit you pretty well. Band of Outsiders would be decent too, although they may not make very dressy shirts.