The program runs $11.99/month, $28.75/quarter or $108/year. I’d be curious to see how many people take the quarterly option. I know in my own business, when I offered a quarterly it just didn’t work. Everybody went for the annual plan. Plus, an annual plan would increase lifetime customer value quite a bit. I don’t know the numbers internally, but I’d probably want to test getting rid of the quarterly option and see how it tests out.
In professional diving, checklists are used in the preparation of equipment for a dive, and to ensure that the diver and life support systems are fully prepared before they enter the water. To a lesser extent, checklists are used by a minority of recreational divers, and by a larger proportion of technical divers during pre-dive checks. Studies have shown checklists to be effective at reducing the number of errors and consequent incidents.