It is off putting at first when you are "making progress" and have a fully marked up plod bike in your mirror but it is a great day out.If they have unmarked bikes you will see a lot more of their abilities. They don't do it on the marked bikes though as the general public see things like "off-siding" as dangerous, even though it is actually safer, so start calling up the police stations to report dangerous police bikers.
off-siding is sitting in the gutter on the right had side of the road for a left hand bend (assuming no solid white lines) so you can see further round the bend.