Hey stingray you are messing that truck bad by doing that!

First tall grass grass in general puts so much load and strain on everything especially the motor and then the esc

Second if you are using lipo the lvc with an overloaded motor and keep resetting by shutting off/on the esc will burn something up..had a neighbor kid do that to my sons truck and ended up trashing a battery plus esc/motor.

Weak cells even on nimh batteries will cause premature voltage cutoff

No matter how knew somebody is to this hobby I would never recommend ecx and will tell them they better read manual and if something doesn't seem right and you are doing something that the directions or Manual doesn't tell you to do then it's wrong and need to stop it.