Perhaps you are too obsessed with being "perfect," knowing how we musicians can be, and thus as we say, micro-managing every little detail.

There are many ways to approach technical issues, and one of them, like your approach, is to discover and work out the micro balance between the fingers, hands and wrists. However, I would like to propose another approach: from macro to micro. One of my teachers is a strong advocate for that approach. I find that it does free up a lot of my technical issues. Of course, it is not the only solution for every technical issue, but it helps to keep my arms and shoulders relaxed at all times. In a nut shell: start from larger motor gestures, constantly checking the relaxation and posture, and then after the body and mind have learned them, gradually reduced the gestures to smaller units, if needed. Some passages may remain macro gestures, depending on the musical context and your intention.
Hope that helps to approach your technical issues.
Let me know what you think.