Now sketch a bigger outline around the tracing of your foot. Then use a ruler and bisect the pattern lengthwise, extending the line three inches past the heel. This serves as a guide to help you sketch the rear tab accurately. These tabs will be sketched in front of this line. The positioning of all these tabs is quite variable, and you can choose to move them forward or back, or at angles to one another, and all usually work, although the arrangement I have suggested may work more consistently.
Problems usually arise with the front set of tabs.
When at angles across the pattern they can twist a little and dig into your foot. That point is more pronounced on some people's feet than on others. Now sketch in the five tabs, as shown on the pattern. If anything you might make some adjustments length-wise, adjusting for particularly large or small feet. Finally, sketch in the holes that you will cut out to thread the strapping through.