About a year ago, I started to notice that no matter what, I couldn't get above about 45 kW of Re-Gen. Even if I dropped my foot right off the accelerator at 75 MPH. I also noticed I was getting nowhere near 90 kW at Superchargers even when the battery was very low. Tesla couldn't really find anything wrong. Then I had a main pack contactor failure and the car was in for a week while they dropped the pack and undertook repairs. After getting the car back, my re-gen and Supercharging were all back to normal. I'm not sure what the connection is, but it was as obvious as day is to night.
