Nova is an "Almost Ready to Fly" kit that I bought primarily to fly as a two-stage rocket using the Estes B-55 booster.

This rocket flies great and the booster stage has ignited the sustainer every time. 

In medium-size or larger fields I use a C11-0/B6-6 combination.

At upcoming Club meets I plan to try a D12-0/C6-7 combination and see what happens!