Oh, my, god! Miners Revenge is what we call a 'dump cake' it fires its entire payload; 19-shots, 380 grams of the finest pyro-powder into the air in one single barrage.
Yes, it lasts only five seconds, but they are incomparably intense and sky-filling, I mean how couldn't they be when the entire thing fires in one go?
Equally perfect to either grab your audience's attention at the beginning of a large display or as a finale to any medium display. WOW!