Has any of you played Elite? It also has gimbaled weapons, but mouse vs. HOTAS vs. gamepad discussions are not among all the "hot topics" associated with Elite (the usual lack of content etc.). Having played it with both, mouse and HOTAS, I can confirm that either model work really well in Elite. I'd take that as indication that Frontier did something right with their model. What's stopping Star Citizen from implementing a similar model?
For reference: There is no direct gimbal/turret control in Elite, yet (maybe there will be, if multicrews will ever be implemented). Such weapons are all AI controlled and follow the currently selected target by themselves. Of course, their movements are slightly limited and not instantaneous. They can also be "confused", if the opponents ship uses chaff or electric counter measures. In contrast to Star Citizen's ship designs though, every weapon hardpoint in Elite can either be fitted with a gimbaled weapon or a fixed version. The fixed versions are cheaper, use less energy and have a slightly increased damage output.