I have a custom balloon in which I have replaced the standard symbol with: \rpt.rel.PART_NUM\ \qty\X
So that the effect looks like what is pictured below. The problem is that I need a radial attachment so the leader moves around the part, but I don't want to show the circle. I made the circle as small as Pro/E will let me but when I create a PDF, it still makes a dot for the circle. I have also tried making the circle white but because we PDF in monochrome that doesn't help either (if you make it gray and PDF in grayscale at least it fades the dot a little).