Good eye! Yes, I asked for 0.25 smaller shoulder measurement for the white shirt, and the yoke is 0.25 inches smaller too. But I'm thinking just the smaller yoke is enough. Now that you mention it, wider hip measurement does seem to alleviate the diagonal lines, though not completely. I can see it in some of my earlier shirts that have wider hip-measurements. I think there will always be some lines, especially if your posture is erect.