My shaft is narrower than the glans. It definitely tapers down right behind the glans, then gradually thickens toward the base.
My wife likes to feel the glans go in, stretching her pussy opening, then feel herself close down over the narrower shaft. She likes to ride me with just the head passing back and forth through her opening, using short strokes. For me, that becomes a frustrating tease because I want to push it in all the way and take long, smooth strokes. So we usually start with her preference, and after she cums a time or two I push it in and take my pleasure.