I purchased this sink thinking I was going to be installing Granite counters and I changed my mind. I put in formica instead. I did not install the sink until after I put the counter top down. I had difficulty with the fit. You must be extremely precise with the template cut. I had to go back and detail the edges. The clips are designed for thicker counter tops. I finally got it right after 3 attempts. I suggest you not put the silicone down until you are 100% sure that you have it right.