Thought I'd put this out there - interested in learning more timing methods for shell finales. I'm self taught so do it one of two ways but am curious as to other ways to do it. (when I say shell finale, aren't they all? - what I mean is a rolling finale - bursts on top of bursts , increasing in intensity) a) - I use several full racks on pyrotimers, with chains for left (20 degrees or so), up , and right. I'll add extra chains with shorter delays when I want the finale to build up. For example Left angle rack, 8 x 3" shells, 4 second pyrotimers between each. Mid straight up rack same, but offset by 1 second Right andle rack same , but offset again by 1 second So they all go up staggered Then I'll add another streight rack of 8 x 3" on 2 second pyrotimers, that starts later - so they all finish together. Then budget allowing, I'll add a rack of 6 x 4" on 2 second timers too. You get the idea. b) simple lifts - fans of 3 shells, fired one after the other - I tend to do this with musicals, to the music. Calibre increasing towards the end. What do you do?