Better add some weight to the nose cone or it will do flips! I built a rocket of my own design & it had fins very near the top, with no nose weight it fliped two time & nose dived into the ground, the kids watching thought is was the coolest thing & wanted me to do it again!, yea right! Any way; I made a new one , added nose weight & it was not bad-not great, but not bad!
Aron