Federal grant reviewers are people too. Make their lives easier when you’re writing your proposals. Explain all your acronyms and don’t use a great deal of professional lingo that might trip up the reviewers. Chances are the reviewers will be selected from your field, but don’t assume they’ll understand everything you put on paper. When comparing two proposals—each of which might be equal in merit and need—the one that’s a little easier to understand, that doesn’t have a ton of jargon will likely score higher because it offers less resistance for the reviewers. It’s just human nature.