They're brilliant. Norman is a great guy and I trust his views implicitly, but with him having been through the whole thing since the early days with the Norton Factory team, and being a highly trained mechanical engineer, not everyone likes his opinions. The UK Norton 'World' is for some reason very, very opinionated.
He's a racer and a good buddy of Peter Williams however - and that's good enough for me.
Best piece of advice for my Commando handling: throw away the steering damper, fit an NW head steady, and fit 18" Bridgestone BT45 tyres, tighten isos all the way up so no lateral movement and only slight axial movement. Handling now perfect even over 100 mph. That steering damper was dangerous.