I've been using the same tube of Molykote G-N for years, but the more experienced I become, the less I use: A light film on areas which see high metal-on-metal contact forces, including leaf shutter cocking rings and gears, ought to suffice.
Seiko speed escapement on my Minoltina caused me some head-scratching: It obviously didn't run properly when clean and dry, but applying even my lightest oils wasn't working much better. That's when I remembered the trick of using oil diluted in solvent, and that did the trick. Some escapements work fine with even a generous drop of oil, but this wasn't one of them.