Always take a video camera and a good operator , you will see a lot of stuff on the tape that you don't relize you are doing or the car is doing , you can tell alot by the sound of the engine that you can't hear in car and the tire spin , just my 2 cents..
Oh yeah , I " A L W A Y S " take a spare " N E W" battery and a jump box with my wife carrying it to staging lanes :shock: