Thinking about the different types of horizontal tails and wanted opinions on what they do well, and what might be their deficiencies. It seems that an all moving horizontal tail might require less area and therefore exhibit less drag. Also since it's one piece, it should be more rigid and less susceptible to flutter. Also, the best/correct fixed incidence would be a moot point. Any thoughts about this? Is a horizontal stabilizer with an airfoil stronger and more efficient than a flat surface stiffened by wires ?