I had the pleasure of speaking to M2 whilst Air Trafficking at Leeming. Note how I didn't say 'controlling' M2 as you couldn't. He was always curteous, forgiving of ab initio errors, and never failed to raise a smile when he transmitted the entire air picture and informed you where he was going to fit into it. Usually right, always well mannered forced the odd belly laugh when the odd word just floated over the ether in an unmistakeable voice.
A pleasure to have known you, Sir.
My utter heartfelt condolences to his family. He touched many people he was probably never aware of.