Rather than go the same way as last time, I decided to route south of the Benson MATZ in order to overfly Henly-on-Thames and arive more directly over Didcot, followed by Hinton again so Adam could see his Grandma's house before routing back the same as before over Oxford.
The plan, therefore, for the outbound leg was:
The return journey was the same as the July trip, but with a different wind: