This is very similar to the "Test" question, except it is done to the CRVer by his/her own people. It is done in one of two ways:
1. By running a CRVer through one "preparatory target" after another until he/she begins to show good results, then introducing "the real" target.
2. By running the Viewer on a single "test target" to see how good he/she is doing that day, then judging the results of the real session according to how well he/she did on the "prep target".
Prep Sessions do not work!!! They only tire the Viewer, waste psychic energy and degrade the overall performance. Besides, as already mentioned (see The Test), a good or bad performance on one question (target) does not mean that an equivalent quality of result will be obtained on another. A PREP session (PREP target) may sound like a good, logical idea, but in practice, it is bad for the viewer, and for the resulting product. Don't do it!