Nice, I like them, you use a program to design any of your rockets?

And I've been doing rocketry for years, but I'm still not as familiar with all the different models, you people obviously know alot about these things. Is there a book that I could get that has all the different estes models and other company models?

ANd just out of Curiosity, how high should those two quickie rockets you posted fly CPMcGraw, the pub and the one along the lines of the Estes Interceptor and Quest Intruder, I think it's the scorpion.