Question for all your experienced TopLace users: Do you have to shave off your hair on top before using a piece? I still have *some* hair left and I would still like to keep it there, if possible. However, when using a piece, you can see through, so the hair is visible. Any tips?

Also, does anyone here use a piece just in the back? I never see these pieces online anywhere, but I know they are out there. (For people with a bald spot in back)

Thanks, all!