How to make a full bust adjustment to a sewing pattern

A full bust adjustment to a sewing pattern is simple and easy to do when you require extra room without adding space at the shoulders and armhole. It is without a doubt the most requested tutorial I have ever gotten.

This is an intermediate to advanced sewing technique. It's probably not something you want to try on your first garment project. But if you're already comfortable with garment sewing and want to move your sewing skills up to the next level where you can really start to customize patterns to fit perfectly, please read on!