I have about a dozen Vanson jackets, including two versions of the Model B. As for fit, it doesn't matter one whit whether or not some other guy wants his jacket to only fit over 'this' or to definitely fit over 'that." It's only what you want your jacket to fit over: if you need to wear a parka underneath, then you need more room than the guy who only wears Under-Roos, so size accordingly.
All of my Vansons with a wind strip try to garrote me in the beginning, when I sit down. They will indeed soften, as will the whole jacket. They tend to feel a bit alien to comfort when brand new. I hasten the breaking-in process by sitting on my wadded up jackets: not rolled, but roughly wadded, angled, bent, turned and crumpled. This will really help speed things along in the help---I've-become-the-tin-woodsman department. I'm sitting on one right now as I type this.
Good luck, and it appears to me you have a good fit!