I guess it depends on what you want to do with your handicap. If you really want to go low, then your fundamentals have to be correct. You can only go down so far with flawed fundamentals. I used to come way inside on my backswing and had a bad position at the top. With that, I could get down to the the low tens handicap but it wasnt until I fixed it that I could go down to a much lower handicap.
I wouldnt say that what you are doing now with reaching out is flawed but moving the ball back in your stance does seem a bit strange especially with the driver. To me, the longer the club, the more sweeping action is needed and putting the ball back in your stance doesnt allow that.