I've purchased couple of international J on this. One of the complex multi-city routing the internet engine wasn't able to handle so I asked the WP line to waive phone booking fee (well I suppose when they are selling ticket for $6k for WP, it's not too hard for agent to waive $77 especially when I argue your website can't issue for me...)

just a note - all the creative triangular routings (eg. going BNE-SYD via MEL) that maximize SC, it feels like they already zeroed out most of cheap I fares, especially those falling on weekend. I'm booking for 2025 August and I don't believe the detour routes are all zero when direct routes non married segments are all showing ample availability. It seems with every passing year of DSC their yield management is getting a little smarter. Believe or not the first iteration of DSC a decade ago, the bonus SC even counted towards loyalty bonus...