I assume this depends on the track. On a shorter track, like a 250 or Alpenrose, there is little or no advantage (and maybe even a disadvantage) of being in the trail position. On a 333 or 400m track, I can see how there might be a disadvantage in leading out the sprint and that track stands might have an application in those situations.
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Cat 2 Track, Cat 3 Road.
"If you’re new enough [to racing] that you would ask such question, then i would hazard a guess that if you just made up a workout that sounded hard to do, and did it, you’d probably get faster." --
the tiniest sprinter