Now we're back to your original question, and the way you asked it as well. Think about it like this:
You will have 30ml of dostinex.
You now know that 1ml or 0.25mg each week is sufficient.
If you plan on using 15ml of it, then you will have half left over.
1ml a week is suffcient, and you are running tren/prop for 8 weeks, yes?
Using 8ml from the total 30ml means you will have 22ml leftover. 22ml is more than half, so your answer is yes.