I’m interested. I worked for a locksmith from the summer before my junior year in high school until 3 months after high school, about 18 months. Never was more thrilled then when I made my first key by impression - to a 65 Mustang. Can’t tell you how may key blanks I ‘sawed’ almost in half with a pippin file before I got it and could tell an impression mark from dirt/imagination.
Got some bump key sets a few years ago and was amazed at how easy my customer’s Schlage front door cylinder opened.
Would love to have some formal instruction in picking, as I learned by osmosis. When all else fails, bring out the pick gun.