Thank you very much for all that. I was particularly interested in how the device tricks the computer into thinking the wheel circumference has changed and wondering if any data traces are left to inform Specialized that it was connected?You pull out your tcu and plug this in-between the tcu and the motor and then put all of it in the downtube, it derestricts the motor so it doesn't bog down when you pedal past full speed. It has power settings that can let you overpower your motor too. It is easily removed and then you can take it to the shop and they are none the wiser. It's idiot proof, as I am an idiot and I use it.
Also, regarding warranty issues and if specialized will bother you my experience is that i have my 2020 Levo comp motor blow up in setting 4 with about 1000mi on it. sent to warranty and replaced with absolutely no issues. Now I just run setting 3 most of the time.
Levociraptor is essential . Makes the bike do what it should.