I installed the new sport pilot 6 weeks ago and love it. The install was a breeze on the set up on the water was quick and easy. I ran into the same soild tone issue the second week out. The problem was low voltage, my ass. batteries shelf life was up. They would no longer hold a charge for a full trip. Once I replaced those the X-5 hasn't missed a beat. I know everyone says this, but it is so true, I don't know how I ever fished without AP before. I'll keep everyone posted but after 6 weeks I have nothing but good things to say about the new X-5.