Originally Posted by mutha
Obviously it is used often by IC flyers to trim the idle as conditions vary. But for electrics - as throttle is very on or off and super responsive it is not that important. I also wonder if it matters too much?
Is it a matter of choice or are there best practices?
It's a good practice to keep it neutral or below. Too much positive throttle trim and you may not be able to arm your ESC because the ESC will detect an open throttle and won't arm for safety sake.