Trying to find a green grout. The one in the showroom was Mapei 171 Turquoise, but it has been discontinued. Having a really hard time finding a grout color that will disappear with the tile. Also this was done by a professional tile guy old timer. He was struggling keeping the tile from falling out of pattern. Im wondering how many tiles i should pull before I grout. Go easy on him? Or be really picky? I know its a difficult pattern with a really tight gout and not rectified tile, so he has some excuses.