Which polish for my Festo machine

Hello everyone. Winter goes and the dirt has to go away. Now I wanted to polish our two cars soon. As a work help I have ne Festo RO 150 E. As totation speed it has 240 – 560 u/min (continuously adjustable) and an exenter speed 4000 – 11200 min. So far I have somehow wrapped through, but this was all somehow not satisfactory. Now I wanted to ask you which polish I should take, or which one you can recommend to me. what I only have to go over once. (so polishing and waxing at the same time) One vehicle is Silver Metallic and the other is Green Metallic.