You can also do what I do. If I've already posted and find I need to edit a post even after testing it on my hard drive first, and I know it's going to take longer than three minutes, I will submit it after two minutes even if I'm not done edting. That resets the clock and you have another three minutes. I keep doing this over and over until I'm happy with the post. And if it's after the three minute limit. I'll delete it and repost. Doing that means I don't have to find a scribe or demi to help me out. Now, if it's days later...I might ask one of them to edit it, if it's bad enough that I don't want to just let the mistake slide.