- It would take Bill days to teach people the key strokes necessary to run sessions. Even after learning them, many practitioners said that it was too technically challenging for them to pursue the field.
- Many practitioners cited a lack of confidence with the elaborate decision-tree computations
necessary to run effective protocols.
- It was a very expensive initial commitment for practitioners who just wanted to try it out to see if it was a valuable addition to their practice.
- Institutions that invested resources to train a technician would be in an awkward position if that technician subsequently left. Not only was it expensive to train a new technician, but it would take months for a new one to become proficient.