I was reading the post by Gibbon about gross weight, and thought I would look at my weight on the V5. It gives revenue weight [y] 3300gk. and max. permissable mass (exc. m/c) F1 3300. Also Mass in service G 1950. I have no idea what this means, I always thought as a long wheelbase Transit the weight should be 3500gk. Does anyone know what all this is please?