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I tried a different supercharger the other day and it gave me much more pleasant numbers :-) It stabilized between 105 an 117KW from around 23 to 45 before dropping slowly under 100. Didn't need more so stopped charging at around 50%. I'm happy.
My 100D is also doing this after 28.2. It just looks like someone who is tired in the morning, opening one eye at the time ... I guess it's Elon's kind of humor :-)