The 443 is a DA. But Sean's rotary RPMs are good. In some cases you can bump it over 2000 but that for wool pad work and it is rarely needed.
Regardless of machine, you can use the above mentioned speeds with every DA. 3-4 for spreading, the above for polishing. The higher the speed, the heavier the correction.
Don't worry about the exact OPMs. There are DAs that have smaller pad throw (3-4 mm), but they are compenstaing this with a significantly higher OPM number (up to 24.000). This ultra fast jiggle often breaks down even the more difficult polishes pretty quickly. It finishes up the coarser ones to LSP-ready levels too. The slower ones, such as the PC have a quite big, 8.8 mm pad throw. That means heavier vibration. A good compromise is a powerful machine with a 5-6 mm pad throw and a 6000-8000 OPM capability.
