I'm curious what your neck size is. I am 5'9", 150 lbs, 40 chest, 32 waist, 16 neck. If you say a 36" chest is a good fit I don't see how I can fit into one of these shirts. I've tried on Brooks Brothers ESF shirts in store (16/33) and it was quite baggy at the waist. The chest was decent, but still a little big.
I usually wear 15.5/33. By " chest fit me perfectly" -- I mean not too baggy and not too tight; just enough room for my upper body and arms to move around.