Setting you back is a lot more nuanced than I assumed; nesting effectiveness, standardizing bend distances
https://codynucp768.theglensecret.com/dormers-without-doubt-the-100-year-performance-of-hand-fabricated-copper
Costing is much more nuanced than I assumed; nesting efficiency, systematizing bend radii, and batching coatings can open significant financial savings without endangering design intent.