Constructing a 16" double-petal, 5 color-changing chrysanthemum round shell. It's the Grand Canyon of shells, a 16-inch cavity that will eat up over a hundred dollars of stars, burst and lift, and create a display in the sky that will bring the audience to their feet. 14-year veteran Derek Zibell starts by saying that large caliber shells present different problems, and then shows us how it's done! From laying the first stars in the casing to final paste-in, the entire process is demonstrated, along with plenty of tips and explanations. It's an hour and 23 minutes of a pyro voyage you won't soon forget. Recorded at the 1st Summer Fireworks Festival.