This is something that has plagued me for years (or a year rather). While some have been pushing for side turrets, would it be that difficult to allow multipart turrets that don't have normals pointing straight up or down? Such turrets currently fail to track properly, although the firing positions do work.
Could you read in the normal for the turret and just assume that the FOV is going to be based on a normal perpendicular to the length and width of a ship? Thus leaving the FOV unharmed and allowing ships to have turrets that don't point up as they come out of subspace?
Please tell me I'm not just crazy.