What is the surcharge for concorde on a First ticket? Would a first RTW ticket plus the concorde surcharge will around the same as a business RTW ticket plus the concorde surcharge? Just a thought..
BKK is always a good bet to start a RTW. Of course you would have to buy a ticket to BKK, but if you travel a lot you can definitely end your new RTW in BKK and start another one on your following trip.
(BTW, haven't seen you on the BA forum for a while...)