When conducting AstroSignature research, you can specify an accuracy rating of "AA", or of "A" or higher, or "B" or higher, for example, so that charts that have less accurate birth information are excluded. There is also a feature to skip the Gauquelin data and other research data that does not have a person's name assigned to it. This speeds up the research calculations and eliminates unnecessary information when, for example, you wish to only see charts of famous people. The name of a chart from the Gauquelin database may be, for example, "Gauq. Painter #1", and you may not wish to have this chart included in the research if you are doing research on painters, but wish to only research those painters whose names are provided.