I bought the 12 x 12 frozen water tiles to create a backsplash for my bathroom counter. I only want it about 6 inches high so my plan was to only use the 3 bottom tiles . But because the tiles do not have a flat side they do not butt up to the countertop (or there would be way too much grout to fill in). Will these bullnose tiles MATCH UP with the 12 x 12 curve of the wave? Could I use these bullnose tiles to butt against the countertop & then add 2 rows (from the 12 x 12 tiles )above them ? Thank you.