Issue: rebuild cranks along generating a potenially large sample of values. The inspecting the list might be revealing. Also seeing the list to view the values close to the max would be helpful. Lastly being able to select from the list woud provide increased precision.

Possible solution: maintain a list of values, maybe excluding or condensing the 0's, and present the list as a scrollable selection list for viewing and selecting.

I might be nice to preserve the list until the next rebuild, allowing selection and evaluation of multiple rebuild configurations.