I use a combination of Woodsy and MinnFlyer. Even turning 45º makes a huge difference in getting the mind and thumbs together. I also try to become the plane. It does sound a little farsical, but it's true. A fellow named Byron Furgeson wrote a book on instinctive archery shooting called "Become the Arrow" and a lot of the same principles apply to RC flight. You should be flying a little ahead of your plane anyway, anticipating instead of reacting.

Above all else: practice, practice, practice.