I concur with that Nigel, having done a tour with the CAF, I know they are mad. Hauling down an S61 with a steel hawser and clamping it in steel jaws, while a landing platform the size of a wimpy 4th bedroom, moves +/- 30 degrees left to right or +/- 5 degrees fore and aft, at night in sea state 8 - is just plain mad.
These Canadians, they have NO FEAR