Nick, maybe you misunderstood me. I never said to start off at full speed. I said to build a gradual acceleration. I agree with you on reaching top speed, and the slower the athlete the faster they reach their top speed.
Mferrari3 – Finding the feel/speed for the first few steps depends on the athlete. The start should not be a jog. It should be a push where your legs/feet drive down and back. This begins to drive your body forward at an angle (drive phase). If you jog on the start, your body is moving forward but not accelerating the way it should be.
So, as I said originally, it is individual. The two primary considerations are, 1) what gets me to the jump with speed and control for the take-off, and 2) what gets me there with consistency, so I am neither fouling nor giving up distance by taking off far back. Going hard from the first step solved both problems for me, but might not for someone else.