Aaron,
The crews will be generating the maximum training benefit from the transit hours. Not much benefit from plodding along at FL nosebleed (apart from gathering stats) over the UK - hope the crew involved had a successful trip.
Wizard,
You'll find out about the skis when it's your turn for the Chinook crossover!
Good luck to all those UK crews (Ch/Me/AH etc) and CF colleagues involved in Ops today.