What to test
In his book, Secrets of Successful Direct Mail, Dick Benson states, “Any idea you honestly believe can economically increase response is worth testing.”
The key words are “economically increase response.” But what is economical? Typically, the more dramatic a change you make in a package, the more dramatic the difference in results.
For example, when you need a breakthrough, test the components that have the greatest influence on the mailing’s success—lists, offer, format and copy. Forget about testing minor changes on page three or the color of the return envelope. Test big things for big results.
However, for clients mailing larger volumes, “tweaking” the control for incremental gains often makes sense.
For example, Client A and Client B both have an average response rate of 1%, with a $25 average transaction. Both test a new package that lifts results by 10%. The only difference is that Client A has an annual (more…)

