I recently bought a Brant Super 150's and the shoulders on a 40R are 18.5 or so. The suit I have is made in china but the fabric is very soft. I have r/c some positive comments on it. For $200 bucks it was worth it.
i also bought one of the Brant S150's, though am returning it because of the fit
I think that the construction of the canadian made suits/jackets was superior
at 200, they are quite a deal, but I thought it was boxier than the previous/Canadian maker
I too just received one of the super 150s and the jacket fits me very well already. This is actually a rather trim 40R based on fit at least (haven't done any measurements). I'm pretty happy with it at first glance.