my imagination of optimum, if graphed as speed against time would be closer to:
—————————————–
than
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
I think staying off the pedals is a side effect of staying off the brakes. Staying off the pedals, as much as appropriate, makes sense, it’s effort and causes unbalance. In most activities a master does less, not more.
slow into corner accelerate out…….so braking must be involved
not necessarily – pump
watched a video of a guy on a pump track the other day, he went all the way around it, back to the start and never pedalled once. Perpetual motion. Well not really but he was getting energy from the track not from pedalling.