i ve heard the arguements before but last week when i had the needle housings come loose and was running at what seemed to be at least 3/4 throttle and the servo hadnt moved yet, and i couldnt shut it down so i threw the off switch on the control and shut it down that way. if i didnt have it my evader would have been toast. i did buy a spring for my gp though because it didnt come with one. better to be safe than out a couple hundred