My current kitchen sink is only 4 years old and a Houzer 36" zero radius sink which is topmount. I plan to keep the sink in the new countertop installation. I called Houzer to see if it could be undermounted. The answer was that technically all sinks can be undermounted though they don't necessarily recommend it because there are no clips (whatever that means). What are your thoughts experience, if any, with undermounting a topmount sink?