Good note there that you got lower fees on QR than BA (though a lot fewer miles flown if that were a goal) and BA flies an A320 from LHR-AMM, not a premium experience, LOL. I did that flight CAI-LHR and then back again later and awesome crew on both flights, quite decent food, but the plane is just any ordinary Euro business cabin and BA's legroom is even more pathetic than most European carriers.

I just went back to my card statement from the DONE5 from last year, it was 991,280 JPY ex-TYO when ticketed, that was at the time $6740. I did some changes during an involuntary change by QR and shifted some other non-related flights at the same time. During that I changed one set of flights CGK-BKK from MH via KUL to CX via HKG, that should have upped my total price a bit as CX has higher fees than MH but they didn't charge me for it since I had it processed together with the invol. Looks like in terms of JPY a DONE5 is coming out nearly exactly the same now (~960,000 - 1,010,000 JPY) but the exchange rate has been unstable, today it's fairy close to my previous ticket but with the 1 year validity it's too early for me to ticket to take advantage of the current rate. This could easily swing up (or down) another $500 or so before I'm within range of when I want to ticket. I think November will be ideal but may get tempted a bit sooner if the JPY rate gets more favorable to USD, plus I think if I find the TPAC QF flight I want with D availability that may force my hand regardless because it's seemingly so rare to find.