Foundational Principles
Here’s a couple posts that set the foundation for how western saddle fit works
https://www.rodnikkel.com/content/saddle-tree-blog-from-shop-and-desk/saddle-fit-and-the-bell-curve/
https://www.rodnikkel.com/content/saddle-tree-blog-from-shop-and-desk/of-cutlery-and-saddle-fit/