Commercial Sensitivity sounds like a convenient catch all term that really means obfuscation and obscuration and there should be no place for these when we are talking about the delivery of a service to the public from Treasury funds. What is there to hide when most readers of this thread will have a pretty good idea that the content of a conversion course is likely to involve a groundschool, a general handling phase, a radar and SAR modes phase, an instrument flying phase, a role training phase, a night role training phase and an NVG phase? All I'd like to know is the relative proportions of each and how much time is being allocated to each. If a simple question like that results in a 'Commercial Sensitivity' tag being applied then that tells us more than you realise.