Yea, I've found expo and dual rates are very personal. And something that you just sort of get a feel for. I almost always start flying a new plane with DR and expo at 30% and 70% (30% expo, 70% throws), and have the DR enabled on the maiden so it's more controllable. But always have expo at 30% and 100% throws when DR is disabled. That way if you don't have enough control once it's launched you can flip them off and bail yourself out. I'm probably about 30% expo on most all of my planes but I do mess around with the throws. Some are 70%, some are 100% depending on the plane.