Hello! Does anyone have experience/ advice for using an E Collar to train an eight month old GSD? We’re considering working with a trainer who used this method and up until this point we have been using primarily motivation based methods. If he’s trained with an E Collar, will he/we be dependent on it for good behavior? Are there any personality changes associated with using them for sensitive GSDs? This trainer has been doing this for years and has an excellent reputation, so assuming that it will be used correctly and appropriately. We’d appreciate any help you can give us!