Well, for what it's worth, my Stillwater kilts have a little bit of that going on, and that is why I asked which kind of kilt it was.

The apron edge was the main flipper because that edge does not come with the flare like Barb is talking about. I re-pressed it with the long sweeping curve and it fixed that problem.

I have pinned up the edge of the flipper pleat with a slight flare toward the bottom as an experament. It does seem to help the problem, but I have no way of knowing if that puts the edge of the pleat off it's stripe. I will just live with the slight flip.