I have a Lab mix and two small smooth-coated dogs. I do not like using the slicker brush, seems to harsh on the skin to me. Would a pin brush work well on my Lab mix? What would work best on a dog with a super short smooth coat (I was thinking just a nice soft cloth)? The Chihuahua is also smooth-coated but it's a lot thicker than the Chihuahua/Terrier cross. Does the brand matter?