Just to chime in...
I think there are some procedures best done with a rotary buffer and some jobs done best with a dual action polisher.
When I lived in California I would often times have to drive 100+ miles to get to a customer's house or shop to work on their car, that's partly my fault because I lived in the High Desert and all the cool cars are down in the valley, or what we in the desert would say, down the hill, (The Cajon Pass).
Point being, when packing my truck to drive to a customer's location to work on their car I would pack both a rotary buffer and a dual action polisher, not just one or the other. That's a long drive one way and you never know what you're going to need until you start inspecting the condition of the paint and then doing some testing.
Doing all your finishing work with a rotary buffer will tend to leave swirls in the finish. We have a couple of resident rotary buffer professionals that promote apparently can buff all paint systems all the time with nothing but a rotary buffer but they are the exception, not the rule.
For most people, doing the correction work with a rotary and then doing the finish polishing with a DA polisher and applying the LSP by hand or with a DA Polisher is a time proven approach as proved and demonstrated by these to recent threads.
4 Part Process Still Has Swirls?
And this one,
What am I doing wrong - Holograms after using the rotary buffer
In both threads, the original poster was trying to achieve a 100% swirl free finish and it wasn't until they changed the action of the tool were they able to reach their goal.
What kind of tool you need depends upon what kind of work you're doing. If you doing nothing but production work then you can get by with just a rotary buffer.
Me personally, I like to have access to both a RB and a DA style polisher and wouldn't go to a job without both loaded and ready to work.
Both the new
PC 7424XP and the
GG ROP are great tools with tons of power, in fact I've posted here twice now that using good technique they actually work like a rotary buffer without the risk of instilling swirls. The new G110v2 looks like it's going to be a competitor for these tools also but it's too new at this time for any kind of qualified judgment.
