We had originally booked Heathrow express tickets, but cancelled them due to just not wanting the headache, and didn't see the additional expense of being in London as worthwhile.
So what I'm hearing is transit airside, flag the arrivals lounge and just lounge hop with the majority of time being spend in CX F lounge making use of our OWE status.
Love it, I relayed the plan to Mrs CB and she has approved and is thankful for the FT insight.
Will report back.