If you are in a change, your old swing will still be there wether you want it or not. It takes lots of swings to fully change. You are probably still having a little swat in the hands trying to close them down. Opening the face for now seems to have solved the problem. What you will want to get working on next is to start to feel a more inside approach to the ball, and not square on. Think about hitting the ball at the 4 o'clock position (8 for lefties). This will allow you the square setup and have it stay straight and long like to are getting to now.

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I'm a golfaholic, no question about that. Counseling wouldn't help me. They'd have to put me in prison, and then I'd talk the warden into building a hole or two and teach him how to play. ~Lee Trevino