I do some volunteer work in my community. This has helped me get freelancing jobs and I enjoy the community contact and service.
So one organization I belong to is thinking of hiring a fundraising firm. I just looked at two of the proposals. One was twenty pages, the other five. Guess which one got a more careful reading?
I am amazed that someone can say in 20 pages what it took another person to say in five. Yes, there were a few more details in the longer proposal, but there was a lot of "filler" and jargon and sales pitches. It just got old.
So remember, brevity is what your readers want. Well, at least some readers. Like me.