I'm with Charlie and Chuck here. At this level that we're talking about in this forum I think that expo should be avoided like the plague. If an experienced pilot uses expo he does it as an aid to his flying skills, but if a beginner at this level uses expo he's using it as a crutch to make up for lack of skills. One of the biggest things that a new pilot needs to learn to do is not over-control the plane. When expo is added it gives the pilot a false sense of knowing that he's properly controlling the plane. If a beginner is using expo he's going to more than likely need to us it the rest of the time he flies and will never really develop fully as a pilot. This is one of the biggest reasons why I recommend that beginners stay away from computer radios when they learn how to fly, so they can avoid the temptation to "cheat" like this. Without "cheating" a pilot will develop better skills by simply learning to fly the plane with the sticks, and they'll be a better pilot for it in the long run.

Ken