Community Tip - Visit the PTCooler (the community lounge) to get to know your fellow community members and check out some of Dale's Friday Humor posts! X
The only way around this that I have found is to place a line segment about half as long as the leader line (of the same pen, with no shadow) on top of the leader line that is being masked by the shadow of the other leader lines. Pop all of your shadowed leader lines above the lineart, and the short segment(s) above the shadowed leader lines.