The amount of throw is porportional to the size and type of the airplane.

I'm fairly sure that it's 7/8" to 1" throw, as 1 7/8" to me seems a bit radical.

The instructions need to be clear and practical, perhaps sent to a technical writer for such instruction. Because written by the model makers - only they know what they're referring to.

I'm flying an Avistar which requires (low rate) 5/8" and (high rate) 3/4"... I measured it at 1" (again, too much).

MacAir