[2021] The AIM-9 Sidewinder missile - Technology, History and Performance

I'm well aware of how they work thanks. Thats totally meaningless as to why F-4F has J and the 104S Bs.

I'm also not the person who decides what gets what.

The 9L has had an autopilot rework to address some of the reported issues from before. You should notice some positive changes in the current patch.

It appears to be a visual bug depending on screen resolution. The devs are aware.