I recommend two podcasts that recently covered operating, both featuring ryanwanger giving some great advice to anyone who is thinking of putting pins on location. Ryan does a podcast called the Little Kings Pinball podcast, where they did an episode talking about operating (Episode 10). The Buffalo Pinball guys recently did a "Bro, Do You Even Talk Pinball" podcast episode also talking about operating (Episode 17). Check them out if you get a chance!