there have been a lot of very good things said about the lake country variable contact pads(or similar...other brands). I was just curious about them becuase it seems strange to me the the center would be curved inward while the edges are curved out?? it seems like the only part that would be touching the paint is where the tranistion is?? Does this make sense? Im sure they work good just curious as to how?? The pictures are just confusing me. I currently use megs flat pads. Thanks