The development of a training manual, it's better to have effect in accordance with its own aims, the endless practice, we can practice more, practice more to be lueay will be good for gap itself.
The development of their own bad practices make it better. To achieve the purpose of self-discipline endless possibilities we can practice sawing and drilling more likely to have a beneficial effect on himself.
The development of the bad part of their own practice to make it better. Results according to their own goals endless practice we can practice saw the rain is good practice is selfish.