Well for starters WA does not have a "move into another lane" law (that is Victoria and possibly other states, not WA from what I can find. You couldn't supply evidence of it when I last asked either. So WA law is a safe pass is one where the cyclist is not hit or obstructed. Personally I would prefer 1.5 metres but each to their own. If you happy with 10 cm I will remember that when passing you
Too true. I was told by a police officer that any pass where I was not hit is considered a safe pass.