Whilst the radio box on a Flux would seem to be the best place for this, the distance from it to the ESC & Motor is too far. The sensors could reach with modification but I just don't fancy the long battery cables I'd have to run to complete the hall effect loop
Instead I cut and mounted a carbon plate to the chassis just adjacent to the motor. From this position it's possible to pick up the battery power without resorting to even a short cable harness having to be made.
Attaching the logger to it with 2xSided tape and tie wraps should be fine. It's yet to be seen what impact the proximity of the motor to the Logger will have heat wise.