i think we have to understand here that this wasn't just any other show, where the corps' in the area would perform. this was the top drum corps from around the nation! of course the competition level is going to be high. also, taking into consideration that it's the beginning of the season and consistency is definetly a factoron performance right now, and escpecially how the weather was the past two days. it's no wonder how the placements fluctuated a lot. if i were you, i wouldn't be worried about the corps' who did change placements drastically. i would watch out for the ones that didn't, and managed to keep it together for both shows, not just one.