I like the 6+ wash mitt setup. Make more sense if you want to touch the paint with a "clean" wash mitt. DO NOT put the dirty mitt inside the wash bucket. :-)
Here is some info about the UDOS
https://www.autogeekonline.net/forum/ask-mike-phillips-your-detailing-questions-/120832-new-udos-random-orbit-polisher-udos-user-defined-orbital-stroke-lake-country.html?highlight=udos...