If it actually turns out that there isn't enough time to get sufficient testing to balance waves and layout then I'm pretty certain that is grounds for an extension. We're not demons who hate fun, we're just filling the available slots in our event schedule and we honestly think that the allotted time should be enough for creative, high quality MvM maps. So WHEN and IF it becomes clear that we misjudged the timeframe for this event, we can talk about extending the time. Until then, do your best to finish on/before the set deadline. Don't forget that collaborations is a option for this contest, so if you're short on time, maybe teaming up with someone is a viable solution.