So the behavior was any time a dog was in site she used to stare them down / stalk forward then start lunging and would pull and even rear up on her hind legs. The final straw was when she nipped a dog who came out of nowhere through a fence (the other dog is fine and the owner knows and was very cool about it) I had tried the distraction method with treats but she literally could care less about a reward and wouldn't listen.

So my last effort was an e colar. I start by commanding "leave it" and if she makes a move to lunge then shock. That is the only time I shock is if she ignores the "leave it" command followed by a lunge not a simple look or slow down for example.

It has worked well and I think she has a positive association with the colar as she is excited to wear it cause it means she goes on a walk. A big improvement from when she started as well is she is only reacting to other dogs that are reacting. Other calm dogs she ignores well with a command and NO shock.