Originally Posted by
cxwrench
...no need to check it...
Well, I would check it just to make them even. When truing, I will come upon neighboring spokes (of the same side) which are quite a bit off from each other, and I know balancing them will not affect the trueness (at least not enough to matter more than even spoke tension). But yes, the average of the NDS will be whatever it needs to be in order to properly dish the wheel.