Unless there is an electronic “box” that’s providing some sort of “curve”, everyone running a crank trigger has the timing locked out.
So? Does that mean it’s what the engine really wants? I doubt it, as most engines I know want a curve of some sort.
Why? Drag race? I've never had a drag race engine run at anywhere below 5000, after the hit, unless it was on the stop for .90 racing for a few seconds. Most of the time, they are well above 3k before the hit.
Unless it's a street driven, foot brake non-two stepped or Heavy Eliminator deal, I don't know anyone else who would spend any amount of time below 3K.
Now I do know people who need to use timing retard for any number of reasons at different places on the race track.