[68skylark]

I've been taught that most people are most comfortable reading text that's about 4 years behind their highest educational level. So when writing for high school grads, aim for a 8th grade level. For college grads, aim for 12th grade, etc.

If you can explain the IFF system using a 6th grade reading level -- something that's probably difficult to do, but not impossible -- I'm sure that our soldiers in the field had an easier time understanding what you wrote and using the system correctly. When the troops are cold and wet and dirty and short on sleep, anything you can do to make their job easier is a great idea.

[calljack]

Well there is a big difference between explaining how something works and writing a set of instructions on how to use something.