Originally Posted by Jan in VA

The Quilter's Cache heart is an upright or straight-set block.

This one is meant to be set on point, a technique that makes almost any quilt more interesting.
I have figured it for a 9.5" finished block but it can be adjusted easily. I'd suggest making your changes in scraps first so that you can adjust your snowball squares in small increments to keep the heart rounded and pretty.

Jan in VA