One final plot. Here is my lifetime SOH versus miles driven. I didn't include the first 10k before because I regarded this data as unhelpful with respect to what to expect going forward. I find the data after 10K miles easy to understand. SOH is going down and it is going down pretty steadily at something like 6% per10k miles driven. I have no idea how to interpret what was going on at the beginning. Specifically the rapid fall from 100% to 93% after I drove it off the lot and the gradual climb to 96% and then the descent. It sure appears like the BC update didn't really do anything but add 9% to the SOH. I suppose I'll know more in another 5K miles before I decide what to do with this car.