The problem that CHC have inherited from Bristow’s, is that most of the Bristow rearcrew are in the twilight of their flying careers. So where do you get the extra rearcrew/winchops/winchmen from??
There is a huge crop of current Air Ambulance paramedics that have years of registered paramedic experience
As for the winching experience, then by 2012 we'll all be trained in 'inland winching' anyway on air ambulances.