This material was taught in a master class by Bob Magnusson. There were several topics that he covered that I thought were so good that I went home and wrote them out for posperity.
There have been recent topics on the forum about playing over the changes and playing out of the box... i.e. playing out of the position boxes that we learn on the guitar. This is a great exercise for accomplishing that.
Note, the goal is to come up with your own fingerings and shifts and to vary them each time you run the long scale. You're trying to break away from patterns. Try to hear the scale degrees.
(Note, he always suggested you end each exercise with some improvisation, improvisation where you don't restrict yourself by the rules of the exercise.)

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