How old was she when she had an ecollar and choke collar on? If these tools aren't used correctly it can do more damage to the dog. I'm going with retraining without those tools. If she got zapped when she was younger for doing what puppies do instead of being redirected then I don't blame her.
Misty- Samoyed Mix, Tannor- Golden Retriever CGC
Robyn- GSD CGC, TC, Midnite-GSD CGC,TC, Brennan-Golden Retriever CGC, Batman-Husky/Greyhound , Apollo-GSD