This is a great idea. I've been on a several year cycle where every 3-4 years I go hardcore again and cut 20-30 lbs with minimizing meal variability and exercising constantly. This feels like a great solution for the intermediate time of trying to slow/stop my general daily increase of 10-20% increase in calorie intake. Even having a small, easy habit like using a mechanical tracker would make me more mindful of what I eat and have a beneficial impact.