I'm more curious about the difference in my F/A-18 compared to others than the GCI issue. I've found many variations that aren't easily explainable ... like my AA radar ain't worth a damn compared to what others claim they can see.
I've tested GCI linking 'til I'm blue in the face, but I'm willing to test your missions and try to get the same results. I DO HOPE it works ... that its been something that I've been doing wrong! Nothing would make me happier!