Absolute evaluation for the students from departments other than DIS does not mean they are favored for grading.
Relative evaluation for the students from DIS does not mean they are underprivileged for grading.
Whichever evaluation formula I take, I believe I have the right and obligation to avoid unjust grading for all students who run this class.
My discretionary judgement, as long as it permits, will be applied to grading for all the members of this class in a way that justice will show up itself.
As a result, the two different evaluation method will not influence the differentiation among those who did their best and those who saught free-riding.
My question is "Why do you ask although you well understood the policy I had announced in class and no change is announced?"
My advice is "Trying to change yourself through making efforts to study and learn is easier and more help than trying to change the policy which is not yet executed."