To give you an idea of Expo, well, I really don't like it much. I only have about 10% dialed in on most of my planes. If you were fly somebody's plane who had, lets say 50%expo. The controls would feel very sloppy. You going to turn the plane and you keep moving the sticks over further and further and finally your sticks are way over at the stops before the plane reacts. Of course you would get use to this after awhile but I just don't like it.

If I were you, I would dial in maybe 15-20% at most and fly it like that until you get the feel of it.