Yes Lee, you are correct, as always. I was able to get the same thing as you with one end. I can't tell, but did you you a regular 'polar stretch' or a 'polar stretch pair'? I've been working with a 'polar stretch pair'. The only big difference I see in the two is a second stretch box and showing a grip.
Now to really wow me, in your example, move the other grip, the origin, using code. And as a encore, do it for more than one of these parameters.
As always, thanks for the help.
Rabbit