OK, looks like I've got loads to think about!!!

Firstly, I just wanted to point out that the Validator tool doesn't look able to cope with the HNL no backtracking rule. If you input a potential routing thus:

waw-lhr-dxb-lhr-syd-per-mel-chc-syd-hkg-bkk-hkg-sfo-jfk,lga-ord-anc-ord-hnl,sfo-lhr-waw

into

http://jph.bytestacker.com/award.htm

It comes up as a valid itinerary, which apparently it is not as you backtrack from HNL back to mainland USA.

Secondly about ANC, a bit annoying as I do actually want to visit Alaska and it is a great mileage (or more accurately for us BAEC members a great Tier Point) run. Will have to consider how to get round this.

Thirdly, very interesting StewieMac, thanks for the pointer on CAI. This actually makes CAI interesting again and I do want to pay a short visit there, although the security situation is a bit dodgy of late. Hmmmm, maybe I'll email Mrs. Sobhi or something