Just got back in from the first night runs. Ran 3 rounds with c's. It actually has a lot of kick and looks unbelievably cool. Big burst of smoke and flames and its off with a hiss. While the delay is burning it dumps smoke like crazy and then both spent tubes are ejected with a poof. I have to get my brother in law to film it next time. I need to find a larger open flat area if I'm gonna try the d's though.

I did have it get away from me once and I ended up flipping it over and crushed the back of the one tube pretty bad, but these aluminum cigar tubes are soft enough to be straightened out by hand.