As I wrote the previous post, I flashed back to a presentation at an AWAI copywriting bootcamp presented by direct marketing legend Herschel Gordon Lewis. He cited studies that proved the effectiveness of numbers over words–regardless of what grammarians might think.
Compare the following phrases:

“features 6 world-class experts who instruct you on the various activities involved”
“features [...]

I was reviewing the promotion for Elsom Eldridge and Mark Hendrick’s new publishing e-course when I noticed an interesting specific sentence: the program “features 6 world-class experts who instruct you on the various activities involved.”
You may know Elsom Eldridge, Jr., as the co-author of the popular Obvious Expert book and as a member of Published [...]