Let us voice our support to this change:

Quote Originally Posted by Rukkirii View Post
Hey guys! I just wanted to let you know that the dev. team agrees that it would be convenient and create more inventory space if they allowed the use of grade 5 dark matter for equipment of any level. We will be implementing this in 2.0, but if there are enough requests we can look into implementing it even sooner.
And request its speedy implementation.