roganval,
I gather you had a look at my car in Newtown when collecting yours!!! If you noticed I have the Factory Round mirrors and I have the nearside stalk moved to the most upright position -- as Petemog says it is a strong spring but it does move!!! When you do this it is possible to get the mirror to give a good view. I expect that the Librands mirrors may be a better quality and also make sure you get the convex ones as they give a better view IMHO and better eliminate blindspots.
Hope you get many enjoyable miles from your car!