Yesterday afternoon, my group went out to the cross country fields to test our rocket before today's launch (1-4pm). The first flight was rather marginally stable, and it shot off in a random direction with a little wiggle in its trajectory. We then added a little nose weight, and it flew much straighter. The third flight was a little embarrassing because I accidentally loaded a C6-0 motor instead of a C6-5, so the parachute deployed way too early and it ripped off and floated away. The rocket was okay though. It should perform fairly well today.