> It may work for a short period of time but she will cotton on that instead of a positive response from me whenever a dog is in site, i.e. giving food for not barking, she will learn that dog = water squirt, not nice, and will react to the dog earlier. Any dog she then sees she will associate with water squirt (horrid) rather than food (nice). Does that make sense
Makes complete sense and is exactly what would worry me.
As far as mixing the 2 methods, I was thinking along the lines of using a noise to get the dogs focus on you so that you can then command a 'sit & wait' (or whatever she has to do when a dog is about).
My pup was a nightmare for trying to jump at people, he would nearly pull me over to get to them, this wasn't out of aggression he just loves meeting people, but in that excited state there was still no getting through to him. In the end I used treats to get his attention
before he got a chance to get excited when people were approaching, put him in a 'sit' & rewarded, kept rewarding while he held the sit & kept his focus on me (or the treat), before long he would automatically sit when he saw people :) There is no way I would have risked using anything that could have caused him to associate strangers with a bad experience (especially being a huge guarding breed).
If your dog is food-motivated it really helps, as using an 'extra special' treat for distraction (something they don'y normally get - so regard as really great ie, cheese) keeps them attentive to you & your commands, but timing is really the key. My pup is completely food-orientated, but if he is really excited food won't work, but used before excitement it works wonders :)
I understand that aggression isn't as easy to overcome as a happy pup that wants to greet people, but if you can find your dogs motivation and distract before she gets a chance to get fixated on antother dog the reward-based training will get through to her.