If you use high aspect ratio for the wing, you can get l-o-o-n-g glides in calm air without whipping and greater lift per handle-input amount, but gusts will upset the plane easier, due to greater sudden increases or decreases in lift with relative-wind changes. The tail, being smaller doesn't have the larger drag of a wing; so it's drag probably doesn't affect the plane's turn performance much - except regarding its sensitivity in and ability to recover smoothly from sharp corners. As Ted says, the increased lift of a high-aspect-ratio tail can increase the angular acceleration into a turn, but the sensitivity can also make a smooth exit more difficult. Brett has often posted the limiting factor of a pilot's own reflexes anyway. So, I'd just add that lower horizontal-tail aspect ratios, having more turn drag (and lower CL-curve slope), should aid in returning the fuselage to equilibrium more smoothly, by always creating a greater restoring force from drag that's present regardless of which direction the handle input goes. I probably said that clumsily, but that's what I can do at the moment.
If I understand my CL history, Bob Baron was known for his great ability to control pretty "skitish" planes.