I bought a 320C FDE some months back. Actually it was last Sept for my wedding anniversary. I got in on the magazine and Sig pistol bag rebate. It's been back to Sig for the voluntary upgrade. The sad part is I still haven't taken it to the range since I bought it. It's a beautiful gun. I really need to get to the range with it.
I was in FL right before Christmas. There is a indoor shooting range. He had a sign that nobody was to shoot a P320 on their range because of AD's. He didn't care if they'd had the upgrade or not he didn't want them on his range period.