My company just went through the upgrade to 2015. This is the CB auditors first audit to that standard. Needless to say the journey was rather bumpy but we had a discussion about the findings. There was not issue about Context because we read that clause several times, understood it and had gotten some guidance from Elsmar Cove moderators. As I said the CB auditors are not perfect. But we got through the finish line without going through an appeal process. IMHO, I had to be very familiar with the standard before going through this upgrade. The Training was not enough.