Originally Posted by Retro Al

Machine wins by miles imo,you would have to be a complete idiot to burn the paint with a dual action,but you can still strike through if your paint is thin.

Your car could have been machined many times with a cutting compound before you owned then car (unless you have had it from new) but thats pretty rare to be honest.

So a PTG is a good idea to assess your paints thickness,it will also tell you if the panel has had another layer of paint,this is were it can be a pain unless you have the expensive ptg which tells you thickness of every layer. ( wont go to much into that)


A rotary generates a lot of heat on the panel hence its a lot easier to burn the paint,touch a panel after using a rotary and it can get bloody hot!

I personaly hate using the da as they vibrate due to the osalating (sp) action,but thats only a problem if your using it for hours on end.