QUOTE(KrisMas @ Aug 18 2014, 04:15 PM)
Which RO buffer? If B&D or Bosch, then the DA has far greater vibration. The vibration is far greater than an RB.
It's a polish - contains abrasive that would remove defects and some fine polishing oils to amp up the gloss. Doesn't contain any protection so you'd need to apply a layer of protection (either wax or sealant) after using it.
If you're looking for versatility between the three (Bigfoot, Flex & Ultramate) I would suggest the Ultramate simply because there are plenty of backing plates and pads sizes available so it's very much possible you can tackle the whole car (including all the curves, hard-to-reach areas, intricate surfaces, etc), that is if you can handle it's vibration. Bigfoot & Flex has limitation on some of those areas and I sometime still need to bring out my rotary with the spot pads. The main reason I went for the Bigfoot is simply because the vibration it created is not that much different from an RB....much much more tolerable for me.
So, if one machine, I would say Ultramate. But if you don't mind bringing out your rotary and also can afford the price tag, I would say the Bigfoot.
Anyway, best way is to try yourself la....and see what suit you best. Go visit Osren, I think they got all three machine for you to try

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I have the Ultramate DA and I agree it's more versatile with choices of BP and pads to match different jobs. But I think the DA is not very kind on small 3.5" pads and they tend to wear out my small pads easily with all the vibrations and pressure we put on the head of the DA.
I prefer to tackle tight panels like B pillars with a rotary. With small pads, the rotary is actually very easy to control.
Btw Krismas,why not get the Rupes Bigfoot Mini to complement your bigger Bigfoot?