Opened a new V2 yesterday. Installed, no mods. Ran it around for a few minutes in the parking lot, then it just stopped. Very conservative race setup using a clutch and mechanical brakes to take some of the burden off of the ESC.
1515/1.5Y
Neu 6s/3900
Tekno V3 MBX5-T
13/48
Our MMM V1 with fan removed is still functional with no issues for a couple months now.