Dodge and parry do not need to add to 25percent khiki, 25percent is the largest income. Hit rating and proficiency begin to become defensive attribute which are begin to rise. It is related to Ghostdom shock. The using of the blood DK mastery depends on the amount of blood that ghostdom shock returns. In the ghostdom shock of CTM, the return of the blood is according to damage you get within five seconds before you press the ghosedom shock. The amount is fifteen percent of the damage, but if you have already learn the talent skill, the amount will be up to 45percent with Cheap wow gold. If the return of the blood is smaller than seven percent of your own blood, the return of the blood is seven percent of your own blood.
So whether ghostdom shock or mastery, when you spouting blood is the time that you can get highest income. You can image that if you hit again and again but without effect after you spout a lot of blood. At this time I think you learn mastery in vain without WOW GOLD. Of course, precision and mastery are also need high equipment level, so I do not suggest you should not learn it that the beginning. You can take them into consideration after your equipment level to some grade.
Besides, the skill named break of DK will hit monsters one hundred percent. So my own suggestion is that you can learn your mastery, Buy Wow Gold and level it to 26, and then learn precision if you have more goods. Because precision is needed more good and high level of goods than mastery.