I can tell you, you’re much better off using FSLTL over live traffic. You’ll get better model matching and you’ll get an overall much better experience. All of my testing between live traffic and FSLTL was using AIG models and liveries and they matched and worked just fine. I don’t know how in depth MSFS correlates airline codes with regional partners but that’s something that has not been an issue within FSLTL for a long time. The best way is to test using the callsigns for the flights. So if you have a Skywest flight used by Alaska that is showing a Delta Connection aircraft then that’s an issue. You need to be able to provide some more concrete examples. You don’t have something set right because in my testing with generic models off, all of my live traffic was pulled from the AIG folder. You can see my results here: Live real world air traffic in msfs...is it real? - #48 by UpstateElf898