As Rick says. Your case is shrinking. The snapshot is a shrink according to the drawn line and the bend of the arc that happens automatically. The other two images are after using EW. So you already know the direction ? Bend the whole shape, do not worry. If you made a small pieces is a terrible job. The whole shape shows you the way, but it must remain soft. A larger hammer is a prehistoric method like "Flinstone". All is from stone. Bam bam.
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