I had a two stage c motor rocket. I had a big group of people for its maiden and it was a sunset launch so it was suppose to be good looking. Well without knowing I put a delay in both stages and worse yet I didn't put any what I call "fire shield tissue" in the rocket. I'm on the pad and I preform the countdown and the first attempt was a miss fire, second attempt was also a miss fire, third attempt ignited the first stage and it launched straight up. When it got to 550 ft it stopped, dropped, and fired and went straight out of the launch site and drops the first stage. Me and a few others went looking for it but found only the first stage. I have decided to not launch there anymore and to buy a motor with no delay in it next time.
When in doubt, forget the first stage. When still in doubt put a delay on first stage. Your worries will fly away with the rocket.