Jim,
You forget that BHL/CHC rear crew have been 'writing the book and making the film' for the last 25+ years as well. It may not be exactly the same book but their way seems to work just as well. Just as the RN book seems to differ from the RAF one.
I'm not sure that the rear crew that already work for BHL would be over happy with an influx of exmil crew, that have been jumped up the pay scale, coming in and telling them 'how it is done'.
I joined BHL, more years ago than I want to remember, from the RAF and thought that knew all there was about operating helicopters (the brain washing worked). I quickly found out that there were other ways that were more efficient than the ones I knew. I learned and acted upon it.
I would not expect to walk into a job and command the top rate and I think that the exmil crews cannot expect too. So the question remains what are they being offered and is it out of line with the going rate for the civ SAR side?