Ryan, Just thought of something that made me think of your project.  I think if you have your model read his/her writing to you it will give lots of information about how he or she enacts it internally and somatically.  Though not the same process as writing, there is enough in common to make it worthwhile.  Also, just engaging that person in speaking, and matching her as well as one can give you a physiological experience common to what her writing state might be like. Then observe her writing and use the difference to make any adjustments to your as-if state. best, JS