Here is a goal: Evenly firm or hard boiled eggs

Which way makes more sense to accomplish this goal?

Pick from: 1. Take the eggs and set them in the saucepan in single layer. fill the pan with water until the eggs are covered. Add vinegar or salt to prevent the eggs from cracking. Place the pan on the stove and heat it on high until the water gets to a rolling boil. Turn off the heat and let the eggs sit for 10-12 minutes. Once the water reaches a rolling boil, shut off the heat, cover the pan. 2. Take the eggs and stack them in the saucepan in multiple layers . fill the pan with water until the eggs are covered partially. Add vinegar or salt to prevent the eggs from cracking. Place the pan on the stove and heat it on high until the water gets to a rolling boil. Turn off the heat and let the eggs sit for 10-12 minutes. Once the water reaches a rolling boil, shut off the heat, cover the pan.
1.