I think I was wrong because I tried for myself in different ways, I think TPT crew are trying to make a "random" part included, but sometimes it could mess up the things we need for presision.
i know it mest up over 30 of my fireworks!!!!
There is a 0.01 pressure diffence between the two because once they are both ignited the pressure can go anyway, so the top one increases but only 0.01 because of the carbon, so the top one get stoped.
i will make it work for ok?