I'm a purist. If you're only 5 words over, why not just follow the "rules" and cut out a few. Even if you think you can't, there are ALWAYS a few words that can be chopped.
I don't get why everyone is so eager to find out how much they can push the word-limit envelope... Shouldn't we all be playing by the same rules? I had to rewrite my essays about 20 times to get them just right. About 10 of those rewrites were just getting the words down.
Yeah, 5 words is probably not that big of a deal--but why chance it?