I purchased a full size M&P 9mm with thumb safety last year. I went to buy the Crimson Trace grip, and found out the CT grip fits all M&P models except mine because of the ambidextrous safety. The ambidextrous safety lever interferes with the CT grip. I only use the left thumb lever, and the laser of the CT is on the right. I thought of sheering off the right thumb lever. Any thoughts or solutions?