In direct mail acquisition, it is essential to continually integrate testing into each campaign in order to stay fresh and avoid fatigue. Industry go to’s for testing in direct mail are package and list testing, as these can help ensure an acquisition program stays up-to-date. But, if you want to up your testing game, cooperative database model testing is essential to staying on top of the charitable market. Modeling makes a HUGE difference in direct mail acquisition! There are a diversity of Co-Op databases and models available that all offer a variety of products which are designed to find the best donors possible for your organization.