Peter,
Really enjoyed the book. You, John and the crew did your company proud. You displayed great instinct and backbone - something the management obviously lacked. You and your crew are an inspiration, your management are a worry and I'm sad to say our management have also displayed very similar behaviour in a current incident investigation and I feel desperately sorry for the crew.
BALPA's actions were no great surprise. Have experienced and seen their 'input' all too often. Why o why couldn't they just ask "Pete, what do you need us to do?".
Well done and all the best!