Originally Posted by jarusoba

The SE IKK is very useful indeed.

If I am eyeing on a long tpac or tatl flight in F or J, but if I need an AC feeder flight to make the itinerary work, IKK is indispensable.

I really couldn't care less about the YQ as an F ticket is worth way more than the YQ they're charging. Even in J, if the routing is what I like or want, the YQ is a drop in the bucket compared to the value of the AP ticket. Of course, I'm talking about more complicated itineraries in J or F.