In my excitement I forgot to realize that ARN-GOT is a domestic flight, and so is OSL-BOO and TRD-BOO etc.
So the two-stop itineraries that exist for under 400 EUR with SK are actually earning 48XP not 60, based on PE earning. Which is still not bad at ~8 EUR/XP but not as good as I advertise.
Regarding earnings, the fares are coded specifically as PE, not J. I fully expect to earn x2 not x3 XP.