cPanel Package Changes Overwrite Quota?

Create another package for custom upgrades is what I do. If I have 10 accounts using a package called Basic, and one of them has special needs, I create a new account similarly named as the one I'm moving them from so it can be found later easy enough, like Basic.plus for example.

If I edit that one later, the Basic package with 9 others on it, stays intact of course.

Not sure how helpful that is, but there you go.