I've searched around on the net at photos of completed smiles with BL 1 and BL 2. I've seen some with BL 1 but very few with BL 2. Can someone show me a link with BL 2 smiles. I'm getting eight porcelain veneers on my top teeth. My natural teeth are yellowish. Will this yellowish show through the veneer? If so, am I better going BL 1? Thank-you