Cannon vs. demolition.

I highly doubt these are correct calculations, and I'm probably gonna be flamed.

In the vid of the captain at newties, it seemed about 3 canons for every demolition. The average damage I saw was about 6k a hit, 24k per blast, and 72k per demo. I watched an other video of a viper at Levi, a boss with higher def. The average damage (not knowing the level) was 13k, and 8 hits. 13kx8=104k. 104k damage - 72k damage in the same amoutn of time...

Is this the video you're talking about? If so, her Cannon is only level 18.

This is a good demonstration of max Cannon. I believe he is 14x.