Everyone - Firstly apologies for the delay in coming back to this - everything has been a touch hectic for a few weeks.
Some fantastic suggestions and it seems like change in the airport, clear immigration, leave bags with left luggage, run, grab bags, clear immigration, head to lounge for shower is the (only?) way to go. [MENTION=848958]tinkicker[/MENTION] thank you for the tips on routes – and works of caution. I know HK relatively well from living there may years ago, but never did much exercise in those days, and it was before the new Airport!
Apologies again for the delay in responding. All the best and thanks for your help.