This is my Semroc Saturn 1B. The launch did not go perfect, one of the four motors did not ignite, even though all of the ignitors worked. I believe that the ignitor got pulled a little bit out of the motor when I attached all of the launch clips. I used four Klima ignitors, four Klima C6-3 motors, Sunward 4 cluster cable, Pratt Hobbie's launch controller and a 3 cell LiPo.