Less Dust Orbital Sander Options

[Opie91]

I am looking at getting a new DA (orbital sander) and was hoping for a little guidance from a pro.

Here are a few questions I have:

1. Do the vacuum units sand as well as the stick-it pads? Do they have extra swirl marks in the job from the holes?
2. What works better: Central Vac sander or self generating vac with a bag? (See pics below) Any preference?
3. What size orbit would you recommend for general use. Keep in mind I am not starting a shop, just doing some refinish work on my boat. (Awlgrip & Gelcoat)

Any input would be greatly appreciated.

Thank you.




3M™ Random Orbital Sander, 6 inch, Central Vacuum, 3/16 inch orbit, 20326




3M™ Random Orbital Sander, 6 inch Self-Generated Vacuum, 3/16 inch orbit, 20327