Testing size 34” (for 4” of positive ease)- pattern recommends 2-6” of positive ease. For reference, my full bust is 30”, waist is 25”, and I’m 5’6” tall.

Modifications:
I added waist shaping beginning 1” under the arm. Decreasing 4 stitches every six rounds as follows: (k2,k2tog, k to 4 sts before m, ssk, k2, sm)repeat twice. I repeated the decrease round 8 times.