Remember to take your time. Allow the tablauture to show you how these three shapes create a road map you cannot get lost in.
This process is unconventional I know. And that's why it works! It forces you to learn the nature of your scales on your instrument rather than confining them to multiple shapes you can't use together. Give this process some time and thought. "Geek out" with it if you will. Don't pass up this opportunity to truly master your instrument! :)