Blazers/suit jackets are a challenge for me since I'm a skinny tall guy (6'2, 38.5" chest). If I can find a 40L slim fit then I'm in good shape. The only negative is a small crease in the lapel when I button the first-button on a 2-button jacket. I see it, but I dont think anyone else really notices. I could get a 42L but then I'm swimming in a huge jacket. So should I buy a 42L and tailor to a 40L? Can it be done or is that too much material to adjust? Whats a typical cost?