Having said that, there are times when the rules should be thrown out the window. I've seen a couple two three puzzles that had 80 entries and the puzzle was great. You could say that the symmetry rule should always be employed, and certainly there are those who agree with that. But there are some amazing puzzles Frank Longo has done for the New York Sun that has simply ignored symmetry altogether so that he could have insane 7x8 corners. Hell I made a puzle for the Onion where I ignored the symmetry rule for a themed puzzle only because I couldn't come up with a suitable number of thematic entries. But I felt that the theme warranted the rule break.
Basically, if you have a very good reason to ignore the rules, go for it. But it has to be a very good reason. Above is a puzzle where I ignored one of the main rules but for a very specific reason. Hopefully you feel it was worth it. Enjoy it. New puzzle on Wednesday.