Hovering into the wind will not give you a straight up and down hover like you are seeing when you are popping into a hover while moving downwind, especially with a small plane. Try this high, but sit on the elevator into the wind so you get no forward movement and no backward movement either working the throttle with respect to the elevator applied. You will get the hang of hovering much easier when you get throttle/elevator relationship down. The plane is very responsive while hovering into the wind, so expo may help with overcorrecting or overcontrolling.