This is how I use a rotary polisher with a 3m foam pad for a moderate cutting phase, post wool step.
I prefer to do my initial cut with a wool pad.. but I’ll come back and refine my wool passes more with a foam pass. I will come back with a DA polish to promise me no potential holograms returning. In a shop cranking out multiple cars a day and week, it’s insurance to know that we can do our thing with the rotary and finish with the DA hologram free. If you get your technique down, you could get away without holograms worth needing a DA to finish. But having both machines is the best ticket.