I'm well aware that there are different types of value, I'm also making a soundly based assumption that the OP, or the IU in this case, is aware of NONE of the them. Which is why I used colloquialism in making the point that that its entirely possible that the Appraisal and the Desktop are responding to different ideas about value and why I referenced lines 635 and 636 which state, in part, "The appropriate reporting option and the levle of information necesary in the report are dependend on....the intnded users."
OK, it was just a little confusing because you had implied that a distressed value is never to be sought that only fair market was possible. The OP may not be aware of the different types of value, but others obviously read the thread and I for one believe it is a public service to strive for clarity.
There may be different appraisals on the same subject property seeking different types of value.