Homework Assignment:
Add up your monthly expenses, as best you can.
Take that monthly expense figure and divide it by 4.
This is your job now, find price runs on 1 contract that yield that figure.
Your back testing should incorporate this view, as it helps put purpose behind your study.
Until you see how often the market lays it at your feet, you will pursue big numbers for big numbers sake only.
There must be a realistic purpose and logic behind your actions and inaction in trading and the development stage is no exception to this rule.