Object:To receive invaluable feedback within your time constraints for the most professional copy possible and for long-term improvement of your writing.
Showing your writing to other people is perhaps the most underrated aspect of the writing process. You probably pass your writing around, asking coworkers or friends how it sounds. Your readers peruse the pages and hand back the document. "Good," they say. Or, "It's okay but I don't know what you mean in that third line there." You thank them, make a few changes, and send off the document.
This approach has one benefit: self-satisfaction. After all, another person likes your writing, so it must be good. So what if that person is as looped into your industry's tangle of jargon and tired word use as you are? So what if that person isn't an editor? And so what if that person doesn't know a passive from a misplaced modifier, or a colon from a comma?
A better idea: get solid, objective feedback that can provide a cornucopia of information to help you improve your document and gain critical insights into your writing skill. Without it, your writing becomes anemic and dry, withering like last summer's fruit.
Given the harried pace of your work life, try to receive feedback at two times.