Reduced throw on the upper wing and differential (less down than up) are both correct for scale type biplanes. Differential really makes a difference with long wings and flat bottom airfoils. It helps to avoid adverse yaw and can help with dropping a wing, particularly at low speeds. The Ultimate is different from the usual scale model biplane in that it has a symmetrical wing. I had a look at the manual online. It looks like, as you would expect that the model is set up as an aerobatic plane with all incidences set to zero. It seems likely that there is some right thrust angle built in based on the illustrations but it isn't specified. The instructions didn't make any distinction between the upper and lower wings for aileron throw. Given what it is, the Ultimate should fly the same upside down as right side up so you wouldn't expect much deviation from the zero-zero-zero setup. Some of this is going to depend on how you want to fly the airplane. If you are flying around, shooting touch and goes with the occasional loop or roll then yes, mild throws with reduced throw on the upper wing will work well for you. If you are wringing out the plane and pushing it to its maximum ability you are going to want full throws on every surface. You can mitigate the effect on handing and stall characteristics with things like dual rates and exponential but the Ultimate is by nature a high performance airplane and some of those flight tendencies that yo are hoping to avoid come with that performance. You have to adjust your landings accordingly and practice things like using the rudder to pick up a low wing