Not the most scientific conclusion but I always thought you would minimize runway use by a rolling start with engines spooled during the last stages of the line up then immediate setting of t/o power once aligned (I think this is what JT is describing)
The big advantage to me is you have take off power set at almost the exact same spot as a static procedure but you keep your momentum, starting off with at least 10-15 knots.
As long as you don't waste runway with your line up technique !