Yea I totally agree Filtering is a massively about confidence, I don't think it should be covered in the test, I think they have to much to worry about already but maybe a sort of Pass Plus for bikers would be a great idea I think, teach about filtering etc..
I don't personally go in the red box for cyclists either, Im not exactly sure we are allowed? anyone confirm? I usually just sit along side a car, that way they know I am there, im not going to get cut up and I will more than likely be gone before they are even into gear.
Oh yea I nod at police riders all the time, always been given a nod back, there a nice bunch really