Splendid stuff...
but it's more than a mirror check to move off.
The correct system is known as P.O.M.
Prepare. Observe. Move.
"Observe" being 360 degree observation, in this instance, including both blind spots and all 3 mirrors.
/Pedant
/New Driving Instructor

Other than that it rocks!!! Love all the letters, very true ;)
( worldwidewardy I remember when all these internets were fields, Mon 18 Oct 2004, 15:29, archived)