I bought a Makita rotary from Autogeek about 2-3 months ago and I love it! With the rotary corrections come a lot quicker and more effective then a DA. The only thing is getting enough use out of it to where you get NO holograms that's what im currently struggling with. I have gotten pretty good with it IMO but after pulling the car in the sunlight I can see some slight holograms. As a follow up to correct the holograms, I usually bust out the PC.
Some simple advice that I have learned from the rotary usage: (Im by no means a pro!)
1. Keep the pad moist w/o saturating it. This helps with the "buffer hop" many get.
2. Depending on the defects, usually the right pad/polish combo you can keep just the weight of the rotary itself instead of applying pressure to the surface.
3. IF the defects are pretty bad then apply medium pressure while using the rotary but be very careful as you increase the risk of burning the paint.
4. Spread the product to be used on the pad or paint VERY well and even. This will help prevent splatter. (The amount of splatter is increased by a out compared to a DA)
5. To check if you are using the rotary correctly after making a pass with it, put your hand against the surface. The surface should be luke warm to warm to the touch, if its cold then you are moving to fast, if its real hot then you are increasing the risk of burnning by a lot!
6. Tape trim accordingly. The rotary will burn or ruin trim much harsher and faster than a DA could.
7. Especially for beginner I would go no faster than 1500rpms with it. MOST corrections can be made at 1500rpms. Some use higher and still produce good results but others will burn paint quite easily.
Like I said before, im not really scared of burning the paint anymore after my use with it. Its just more on perfecting technique to not get holograms AT ALL and to reduce the splatter. Even on a car without a lot of swirls or defects, the rotary I feel can provide a burnishing of the paint the DA connot simply achieve.
I have been using LC 7.5in variable contact pads. For a begginner I think they are harder to use. I have now bought some more pads that are a constant "flat" surface and got 6.5 pads instead of 7.5 Havent used them yet, but I will on next Monday.
Here's the info from Lake Country on the LC pads I have:
What do we mean by variable contact?
Lake Country's patented design features a "stepped, concave" buffing surface that varies the level of pad-to-surface contact depending on the pressure applied by the operator.
Benefits:
Improved operator control - Ability to vary pad pressure allows the operator to"work" the compounds and polishes for the desired results.
Eliminates Splatter and Waste - As the pad rotates, polishes and compounds migrate toward the center of the pad, virtually eliminating splatter and waste of expensive compounds. Especially effective on vertical surfaces.
Ideal for Tight Spaces - The profile of the curved edge pad is great for buffing around objects in tight spaces. The recessed back prevents contact between the backing plate and the working surface.
If anyone else I would like to correct me or add anything, please feel free, as I stated earlier i am not a pro and have only used the rotary for about 2 months on about 4-6 cars.