I love this technique. It brought my feathers to a new level of awkward. Really, I love this this method. Have never been good at feathers and this book helped tremendously.
As with all quilting, it takes practice. Paper & pencil, dry erase board, Every piece of scrap paper that comes into the house is covered in practice feathers before it is tossed.
Give it a try, It will also help with traditional feathers.
peace
I would give it a whorl.