The way mine worked out, the mark for the first pleat ended up about at the inside fold of the first pleat, and the mark for the second pleat ended up at about the outside fold of the first pleat. I'm wondering if when they made the pattern the accidentally marked the X's the depth of the pleat instead of double the depth of the pleat.

I didn't flat line mine, which is made of a mid-weight wool twill. It's got some weight to it, but it's not ridiculously heavy. I think I'm going to do the crinoline at the hem and a hem facing of plain cotton. It will be interesting to see a comparison of how the two skirts hang.

I hope you don't think I'm being a copy-cat, but imitation is the sincerest form of flattery, right?