Oh no, sorry! You expressed it fine, I was agreeing with you. Just elaborating for the benefit of those who believed otherwise. It was me who perhaps didn't say it very well.
It's eighth grade geometry - the angle of the dangle (rudder) plus 90 degrees is IDENTICAL to the angle of the elevator/stabilizer (+- whatever _fixed_ pitch the elevator/stabilizer/winglet was set at, relative to the rudder, when it was constructed).
from 2:06 in this video:
Thank you! Think of it this way: the stabilizer is at a fixed angle relative to the rudder, say 90 degrees for example. If the rudder angle changes two degrees, the stabilizer is still fixed at 90 degrees relative to it, so it too will change two degrees, and this is true regardless of how far...
A "a much greater change"? How do you figure that? The change in rudder angle at the top will be exactly the same as the change in angle of the stabilizer at the bottom, eh?
You couldn't possibly afford him anyway so your point is moot.
Other effects of "a stubby foil" (greater chord) were mentioned by Xlot in a different thread: