1 to 1 would not be enough. To really get the plane into a nice harrier you are almost totally hanging on the prop and the plane is just crawling down the runway, even in a gentle downwind. Also, you are constantly juggeling the throttle and sometimes you need to jerk the plane up FAST like after the engine coughs for a split second. It can be done on 1 to 1 but you'll have to be good and the engine and fuel delivery will have to run flawless.