I counted 5, I know whose two of those where !
Most where quite aways away. Can't miss the flashing red lights !
I'll post the video when they are uploaded....
Talked to the Fireworks company before hand and got heights of the fireworks and suggested distance to be from the explosions, plus wind directions so not to be in the smoke. Learned that each inch in can diameter equates to about 100 feet in height. The owner doesn't mind the drones and even asked for a copy for their facebook and webpage. For safety, was not over the crowd, but private property near by.
Even said if we want, we can go to any of their shows and film. Don't know if this is considered for profit, just post for fun.