Just received my dark royal calf MDR yesterday. The lengths and fit seems pretty much spot on. Just takes a little to get used to the relatively high armholes when compared to my lamb bomber. Perhaps this is attributed to my reduction of the suggested chest measurement by 0.5" (no idea if this was a material variance).
I'm definitely glad that I got this in calf as opposed to lamb. Calf just seems to be a a little more edgy and tough, befitting for the style of jacket. Now that I have a point of comparison, lamb was perfectly appropriate for a casual jacket like the bomber. And another point of calf vs lamb, in case no one has already mentioned, this calf MDR is a bit heavier than the lamb bomber.
Dark royal is a great color. It's basically dark blue, and slightly less dark than navy. Dark enough that in dim lighting it practically appears black, but is blue enough that I think I can pair it with brown shoes.
Now I'm hoping that the DC area will get a few more colder days so I can justify wearing this super steezy jacket around.