Well some more brushless testing. Using the HobbyKingâ„¢ 120A Sensored/Sensorless Car ESC (1:8/1:5)
Its ok and have a programming card now for it. It certainly wants the pause time between forward and reverse. Some other ESC are much better at this. So might look at these later.

The motor and ESC combo is about 200g lighter than the Speed 900 so thats a handy saving. Working on reassembling now