Paul, yes- the longer your control horn, the more leverage you get. This sounds good, but only to a point. You need it short enough to allow the amount of throw required for your desired sensitivity on control. (If it's a 3-D plane, you can also get huge throws by using an extra long servo arm.) I usually try to set the pushrods to the farthest adjustment holes as possible, then adjust to get the desired throws. Hope that makes sense.