Welcome to TSD. If you can't feel the spot on your chin you can't shave it. Have you tried stretching the skin?
Welcome to the Den. Used to live in Orlando. We were stationed at McCoy AFB. Matter of fact my family still lives there. Again welcome.
to TSD "DAN" Those spots on your chin are just one of the things that make you unique, everyone has something like that. I have a couple spot on my neck that are similar to that, they just won't get as perfectly smooth as other parts of my face, no matter what I do. I hope you enjoy it here with us.
Welcome to the Den, from Maine. Try pulling the skin going ATG and pay attention to the angle of the razor