Re: Getting Jazz Mandolin (the book)__note vs positions
I would think that a lot of the point of Ted's book (correct me if I'm wrong) is ultimately to get you thinking about the relationships between the scales in meaningful ways. Take what you need out of it. When you are ready, go back for more.
I personally hate scale exercises and used the book just enough to start understanding the relationships among the different scales in each diatonic "cluster" on the fingerboard. I used it to help understand the relationships between the ii-V-I and other chord progressions. I also stole some cool chord shapes. 
Then, honestly, I stopped playing the exercises and started practicing improvising using the concepts. But getting lightning fast on finger studies has never been my goal. Your needs may be different.
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Andy
"Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886
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