Two launches within 4 months?

Hey, wondering if anyone here launched their product again before the 6 months point? We're about to have a major release that'll significantly change the product, so I think - according to the rules - we can apply to launch earlier than 6 months after our last launch I'd love to hear your first-hand experiences, though. How did you do it? Was it difficult to argue that your product has changed enough to launch again? How did it go? Any tips? Thanks in advance! :)