Thanks to all for the feedback. I feel a lot more confident about this now. One more technical detail out of the way before embarking on the new project. I've looked up the "intermittence effect" and still trying to figure this out. As the ambient light will be off for all the exposures there is no reciprocity issue with multiple flash pops. This intermittence effect may be something to consider however. I'll keep researching. Just so that you know the context of my next project, it will be to photograph diagnostic imaging rooms (i.e., x-ray, MRI, CAT, etc.) in a hospital. Had to jump through lots of hoops to get access. One more administrative hurdle to jump this week and I'm there .