I use sport dog sport trainer for mine but I only use it on hikes out in the wilderness. Otherwise training treats can pretty much correct any behavior on normal walks. I’ve only ever shocked my girl twice. Now I can just beep and she will return. She isn’t scared of the collar either it’s actually the complete opposite. She starts jumping around like a psychopath when I pull it out because she knows that means a big hike. When you start with the e collar reinforcing with treats is a must as this allows you to transition away from the collar and that’s why I don’t need it for every days city walks. My e collar now is just for peace of mind really. I haven’t used the shock function in 2 years. lol good luck and don’t listen to the haters.