I'm planning on making my first trip to Oshkosh this year. Because of work we cannot arrive until Thursday, which I hear a lot of people will be leaving by then. So, my question is what are the busy/not so busy days and times to arrive? With a lot of potential departing traffic on Thursday, when would be the best time of day to be coming in? Right now I plan on coming in fairly early on Thursday and leave Sunday morning. Thanks!