I want to symbolize some point locations according to an integer ranking of 1 through 7 where the symbol size will be based on a logarithmic scale, not linear. When I set this up in ArcMap using the Graduated symbols renderer, I can easily choose 7 classes and a size range, but that size range is divided evenly by 7. When I try to use the Proportional symbols renderer, I make my choices shown in the screenshot, but my choice of 7 symbols to display in the legend is always truncated to 5. And why can't you specify a size range as opposed to only the minimum size? Clearly, I am not understanding something. How do I do this?