Hope you don't mind me hijacking a bit, but I have trouble with mine with this too. She will Hier but will stop and sit about 1 foot in front of me. Would the platform or chair work in this case? I have done the treat and ball under my chin but she tends to still stop 1 foot in front of me for the treat, and will get close but jumps for the ball.
Kya - GSD 7/15/00
Phinneas - Min Pin 2/4/08
Milla - Orithia Z Diehlomov 2/10/12
TJ - GSD 2/27/99-8/7/11