Use better leather and it won’t tear. Pauly showed me a sweet method of using painters tape sticky side out, and then another layer sticky side down. Carefully cut it off and it gives a perfect template to cut the leather. Leather stretches a little more one way than the other, I like to keep the stiffer side for my stitching edge. Wet the leather, pat dry and it’ll really take on any form if you have a curvy handle.