Ok, so taking out the seasonal variations, there's a slow steady decline under the covers that only becomes visible as a step down after one of those long drive/charge cycles recalibrates the world. In terms of planning for a need-based move to the 3.0 battery, one should do a deep cycle every, say, 6 months or a year, and monitor the progression. I guess my question was, is the corrected CAC progression going to be linear, or have a knee?It typically has knees. They usually correspond to a long drive or low discharge which allows the system to perform a more accurate estimate when it recharges. It's also temperature related. My CAC starts dropping in the fall as it gets cold and rises again starting in May or June. Many times after a sudden drop it will slowly rise again if you mostly take short trips.