I tune all of my cranks in the pool. I have learned a little bit on how to make minor changes to the action based on the shape of the lip and the thickness of it too. Some cranks will not run well. Shave a little off of the bill thickness and all of a sudden they start to run better. I have no life when I am actually home and not traveling. It leads to experiments like this. But I'm learning something and all of my cranks run better now.