Hi there, just found this thread!!
I invested in innotek e-collars (you can purchase online) I have 2 GSPs who love to chase roos and rabbits, and have managed to get a few along the way we purchased 40 acres almost 4yrs ago which is renowned for tigers and brown snakes. We live a bit out of canberra, and really couldnt afford driving around in circles trying to find a vet if the problem arose. Both of my dogs have attended obedience classes one to novice and the other not too far behind, so when we are doing a little training they are so obedient, but give them some room to run and the scent of wildlife, bye bye dogs, 6ft fencing doesnt stop them, and the chance of a farmer shooting them one day is possible!!! I can scream till im blue in the face and drooling with anger, doesnt make a difference so what to do?? My collars are fantastic!!! I have one remote control which controls both collars, they are waterproof and simple to use. The innotek systems comes with a DVD on how to use also. During my time in canberra I sat an obedience instructors course and am confident of how to train and use the collars without abusing the dogs. Due to the abundance of wildlife my dogs dont go out without them on as the times I forget they always find a roo, and to my amazement last time they did, I called them and they left it, they got a great big pat and went home very quickly!! ;) When I get the collars out they start screaming with excitement as they know they are going for a walk, I havent managed to stop the screaming :D but I have managed to stop them chasing I purchased them that maybe one day they would help save their lives, I cant fault them and highly recommend them.