With my two, even when I walk them separately, I still have to use the prong. Nadia pulls so intensely that even a correction seems to not have much affect on her. She will come back to a proper heel position for a few minutes then is right back to pulling. Zisso is all over the place zig zagging like a mad man and even giving a correction with a pop of the collar is tough for fear I will pop at he wrong moment and hurt him. I have had them both since they were 16 months old and they are both 5 years now
Nadia - GSD -DOB 12-29-07
Zisso - GSD- DOB 9-16-07
Pepe & Kiki`my sweet kitties
Zisso is my heart~Nadia is my Love~My kitties bring me everything in between~Together they bring me Joy!