Not much to report. I had copied the 1911 corset pattern from C&C and used the Corsetmaking Revolution percentages method to determine the widths of all the pieces, but I wasn't sure it was right (and I knew it wasn't in some areas), so I scaled it up a bit and printed it out again. Then I measured and multiplied and divided once more, and produced something that made a bit more sense. I finally drew the pieces out on some newspaper through my own inexplicable scaling-up method, amazed that they came out to be the right size and to fit together.
Then I read the post on using the slashing method to widen pattern pieces, which is much simpler. Well. Next time.