I was going to say maybe you could add the distance you had to cut from the short course to the long course to make up for the two short long courses we've had so far this season!
An unmapped track you say? I am ashamed as I've remapped the entirety of the Carinyah map over time (unless it's only been there for <5 years or thereabouts).
I hope you don't find a shorter way around than I used - there are longer but faster options.
Maybe Dalto deleted the track because it messed up his route choices and forgot to put it back :-)