First-Try died a glorious dead. Everything was looking good, all three Pro J330 lit and lift-off was great! Then two seconds into flight the rocket suffered from a catastrophic airframe failure. It appeared that the break happened somewhere near the bottom transition. Half the rocket continued on a ballistic trajectory to the ground totally destroying the motor section- but leaving an impressive four-foot impact crater! The other half did a flat spin into the ground. My question is, if I fiberglass the mid section, would that give me the necessary strength to handle lift-off? Or am I looking at using some type of full-length internal insert to combat lift-off stresses?