From 45* climb, I go into 3D rates and push the sticks forward and to the center, as in a Lomcevak. So that would be full down and left ail and full throttle and right rudder. As the plane slows (tumbling now) go to left rudder and back off on the throttle. It will usually start then. You can now speed it up by increasing throttle. Different planes require different amount of throws. Sometimes too much rudder will just snap-spin it.