JoinFS is a tool that enables cross-platform multiplayer for MSFS 2020 and MSFS 2024,
but it also features an excellent replay recording function.
You can fly in formation with an aircraft you previously flew and recorded.
A key strength of JoinFS is that the replay aircraft exhibits very little jitter.
This allows for smooth flight with minimal jitter, even in VR.
I hope to see the JoinFS user base grow and the tool become even better.
English is not my native language, so please excuse any errors in translation.
1: File-Recorder - Record and save your aircraft
2: View-Aircraft - Follow your replay aircraft
3: Recorder - Add recordings using the OverDub button
JoinFS Download:
S
Sample Fight Video :
I have been using JoinFS for several years back when I was flying with P3D. I was the only tool that could record an helicopter flight and let you replay it while you were in another aircraft, just watching yourself. In fact, when P3Dv4 appeared with its avatar mode (same as “walk around” in MSFS2024), I loved to record some heliopter short flight, just the replay it and watch myself from the walking mode near the landing spot 
But we were mainly using it for multiplayer / formation flights, because at that time, it was the only thing that actually worked. That tool had a very nice system to choose which alternative aircraft model should be used for remote players in case they used a model that you didn’t have.
However, I haven’t used it since I have switched to MSFS a few years ago. The multiplayer in MSFS was just working well enough and I didn’t miss the “replay” feature that much. Same with MSFS2024 of course. However, recently some model-matching issues are motivating me to look back at JoinFS. It might solve a few headaches…
The model mismatching issue in MSFS 2024 is quite serious; right now, it’s a complete mess.
I personally use JoinFS for formation flying with “replay” aircraft; unlike other tools, it performs well even in VR, with minimal jitter.
Hey!.. Thanks for the shoutout! 
I am very grateful for JoinFS, as it has expanded the ways I can enjoy MSFS.
