"Whichever way the arithmetic is considered, the final sentence of 5½ years, for the full extent of your involvement across a 3½ year period in the two separate Class A drugs conspiracies, each relating to both heroin and cocaine, is not arguably wrong in principle. Nor is it arguably manifestly excessive. To the contrary, the judge made a very large reduction in sentence for totality; in my view a sentence of 6 years overall could not fairly have been criticised as excessive."