A little about using a buffer.

Never buff with the pad spinning into an edge always have pad angled to spin off of the edge this minimizes the chance of polishing through thepaint or worse yet hooking your rudder and tearing it off. ( Dont Ask )

In the pics are a couple of examples. The wing fillet with the buffer spinningclockwise going off the edge, the elevator doing the same and the rudder also.

Use the buffer tipped slightly on edge so you have good control of where you are working.

It only takes slight pressure todo it. The weight of the machine is plenty.