When I had a canon 5D mk ii I focus recomposed all the time as it was far easier than trying to line something up on one of the outer points, which had poor placement if I'm honest. It didn't really affect me too much though when I got use to it. When I went to nikon and had a D300s, the AF system on that seemed so alien as it would focus on any of the 51 points (which cover the entire view finder) so stopped focus recomposing. Now owning a D3, the trend continues of not having to focus recompose for 99.9% of shots I take and the 3D tracking is extremely useful for wildlife.
