There's no practical difference in the small or large mirror that I have noticed, I have had both but not at the same timeI
I've just missed out then, doh!
I loved the mirrors on my first Suzuki, they were about a foot square, awesome things. Hopefully I'll get used to these, they're not that bad.
On some higher end cars the outer third approximately of the mirror is convex giving a much wider angle of view, this almost eliminates any blind spots