Wouldn't it be fantastic if the next new button Filemaker released was a variable slider control. useful for widening search criteria. Age would be a good one. So a photographer wants a model of 28 years. Your search starts at an age field of 28 and once 6 models are found, if not suitable the parameters can be widened to 27-29 then 25 - 31 etc.
I know filemaker are smart enough to do it.