Yep
I think Derek Piggott & Anne Welch cracked that years ago.
It's (the Motorglider) not a replacement for Gliding or Glider Training or Soaring practice or X-Country practice - It's a complimentary tool that can allow you to maximise use of time & conditions and improve your abilities and technique by exposure to a range of situations.
Thanks everyone who has contributed to this thread.
Arc