The Edge system looks to be the choice pad system, but that quick release sticking down into the pad scares the crap out of me! How far does it stick down into the pad? Can it come in contact with the surface you are trying to perfect? What am I missing here with the design. I guess I have to see a video or "how to" for the Edge system because I'm considering purchasing. Can someone clarify how it is used for me? Thanks
