My partner does the driving !! Now, SHE tends to stay in the middle lane , for at least two very good reasons. ---Firstly, she is constantly agitated and disturbed by the cretins who hurtle into the "slow" lane when joining at junctions, often without indicating, and certainly with scant apparent regard for anyone on a collision-course with them. Secondly, the "slow" lane often holds numbers of rather dubious-looking contraptions, many of which either drop lumps of mud & bits of whatever they are carrying, Throw up VAST clouds of spray, or emit clouds of black smoke which finds its way into the car. Also, a lot of these wrecks have dodgy lights, and often pull out without indicating ( if, indeed, their indicators actually work ) ..... So, until Plod goes back to patrolling the roads, it"s the middle lane for us, Matey !!!