I've done US to Europe, or mainland to Hawaii (3000-4000nm range) without issue.
However, when I get into the longer flights (e.g. US to Korea, to Argentina), using similar technique, I am not liking my results. They are optimized from a aircraft scheduling perspective (there is very little gap in time but for enough to fit maintenance), however, they only service 5 out of 7 days. Seems like that extra day or two could really affect profitability for such an expensive aircraft.
There are eight such destinations that could support my aircraft.
So, the question is, am I really better off going through the work to match up a round-robin 7 day schedule (as I've read about elsewhere) or should I just find a fat domestic route (of which there are several still in BW) to match up?
I'm leaning to the latter because it is only a short term game world with BW, but there are longer term competitive issues with it, if I were in one of the other game worlds, correct?