Let me preface this by saying, I have not shot a FT match yet but do plan to start in the spring. I have however given it some thought but at this point it is mostly a mental exercise.
Since in HFT you are not allowed to touch the turrets duing a match you will want to minimize the amount of hold over/under as much as possible. To my way of thinking, a zero where ever the pellet crosses your LOS would be an ideal starting point.
For example, with my setup I intend to give a go with in the spring, I have a 20yd zero so between 20 & 35 yds I essentially have zero holdover or under. After 35yds it starts stepping up to 55yds with a 1.5mil hold over. I have verified this on paper at the range. Now whether it will serve me well at a match..
I think so but we will see...