That stuff works great. Used 3M Ultrafina with a black foam egg pad on my rotary after Meguiars #85 Diamond with a wooly. Even tried a full glaze on some panels using 3M Finesse-It in between and it didn't make a noticeable difference. Using the UF and #85 as a two step package worked great. This first pic was just after the wooly. Put UF directly on the pad from now on to avoid splatter. As clean as she's gonna get after 2 hours of work, inside & out.