I've been starting my burnout in 1st gear for 20 years now in our race truck... bring it to 5k then shift to 2nd then hold at 5500 until done... never had an issue.
Here's an idea. We have both the truck and my dart set up like this. I have my line lock on a toggle switch. Set brakes, toggle on, start, shift, then just flick the toggle off and burn out of the box. Never have to worry about the button slipping out from under my finger.
^^^ Damn... tree'd me by that much... story of my life...lol.
