When removing rust from a frame, is it better to feather in to the original paint, leaving as much original paint as possible, or to remove all paint and start fresh? About 1/4 or less of the surface area needs to be taken down to metal and feathered. I will be using a media blaster to remove the rust. I plan to repaint the entire frame. BTW, does anyone have a favorite media to use to remove rust from a frame?