For version 1.4 of the mod, I’ve flown it almost 6000 miles, for almost 12 hours over the course of two flights at FL450. Both flights had very similar (if not the same) fuel efficiency (see Bangkok and Darwin below)…
All the prior flight segments used v1.3 or older.
.
For those that are curious, here’s what I’m currently doing with the Longitude (with both @Dakfly0219’s mod and Working Title’s GX000 mod…
My “Seven Continents of Flight” tour:
https://forums.flightsimulator.com/t/seven-continents-of-flight-in-the-citation-longitude