When making any adjustments such as those listed above you need to make sure the plane's controls surfaces are mechanically correct before starting to make adjustments with the radio such as sub-trims. I can't count the number of people I've seen get in trouble because they used the radio to make adjustments with before the plane was mechanically setup. Using the radio for making individual aileron adjustments in this case can cause problems such as differing amounts of control throw for each aileron, which can result in erratic flight behavior among other things. You should ensure that both ailerons are mechanically centered before doing any adjustments with the radio.

Being able to make adjustments such as this is a great feature of computer radios, but within the context of the Beginner's Forum we tend to not recommend it in situations like this for exactly the reason I listed above. Before making any adjustments in a radio the pilot should understand what they are adjusting and the consequences of those adjustments. If they start simply changing endpoints, centering, sub-trims, throw amounts, among other adjustments without understanding what could happen they could very easily result in a plane that is difficult or impossible to fly. This is why we recommend to not use a computer radio, or not use a computer radio's advanced functions, while they are learning to fly. The stundent needs to learn how to mechanically adjust the plane first.

Because of the above is why I recommended the Y-Harness. In cases like this K.I.S.S comes into play here. The simplest solution is usually the best, and the Y-harness is the easiest and simplist solution for beginners.

Ken</p>