Sights for sights - Kensight DAS Adjustable Pistol Sight w/ Serrated Blade

I have had this sight installed several times before by a different gunsmith with no problems. My local smith had difficulty installing the sights as he said they were not square and he had this problem before. It took some pounding to install and he had to clip the springs that adjust height to make it right. I don't know if it is the smith or the sights but all is not right. I may need to send it off to my gunsmith in Colorado to make it right.