I just had tile put in my tub/shower enclosure by a tile person. I agreed to put in the grout and the caulk. There is a 1/8" gap between the tile and the tub on the back wall but on the side walls, the tile comes all the way down to the tub. I know 1/8" gap is standard. Can I hear some opinions if having no gap will be a problem or if it will be, how do I cut a gap without ruining the tile? I want to make my decision before I start the grout. Thank you.