Sounds interesting...

Why would you just accept results though? What's the point of knowing what the seating force if you can't do anything about it? There are also some variables in seating force that will not have an effect on actual neck tension. Neck tension is the goal, specifically release force, correct? It is easily possible to have 20 cases that have exactly the same release force but have different seating forces because of small things like bullet alignment as the bullet starts into the case. I would think a way to test release force and actual neck tension would be a more telling project.

The good news is that you CAN change neck tension and you can standardize some things to get everyting as close as possible. Steps would include, size, trim, neck turn and anneal. Cases should be consistent as possible after that.