I have tried researching anything I could get about this pattern on the internet, but except some photos from the book, there is not much else. Either knitters who have made this don't keep a blog or webpage or not many knitters do make this. So I don't get too much help.
But my greatest problem is the gauge. I am using the same yarn used in the book, which should yield a gauge of 12 sts per 4" over Diagonal Twist Rib (see the photo below) using US10.5. Me? I am using US15! and the gauge is still a bit off ... on the smaller side.
Now, my only worry is whether the jacket would fit well. But blocking should do the magic, I hope. ;)