Umm..... If you read more abot full-size aircraft, you will know that their engines have this things called magnetos. They send signals to the spark plugs when the prop is flipped. That's why and engine may splutter if you move it....
well we arent talking about full scale planes.. and we dont have magnetos.. and yes an engine WILL and CAN start while hot.. i had both things happen.. put the glo driver on and the freaking thing started.. how.. i have no idea.. and not to long ago i started my motor back up after a full tank of fuel flight, with just my starter. so believe what you want, upgraded my respect for these things after that.