Yep. Cyborg Bassist was released after I had bought Scales. Mark created them as standalone workbooks to augment Scales or, alternatively, to be used completely on their own as a separate technique-based scale patterns etude-ish study tool.
Same situation with Walking Bass and Walk that Bass: the latter was released after I had started Walking Bass. The workbook and its tunes are a great complement to Walking Bass or as standalone study for those with a working knowledge of theory, chord tones, and scales, as well as jazz.
Having previously played other instruments and studied music theory, my personal goal for studying B2B was to learn proper fingerstyle bass technique. Mission well accomplished there.
I’ve gone on to study Talking Bass courses to do deep dives into how music theory and expanded bass playing techniques mesh to work together. The journey has been fascinating and very rewarding.
Kudos to great teachers. 