| Go ahead and use a standard training slip collar. Get a chain one, no longer than is necessary to barely slip over her head. Means you might need to purchase more as she grows, but they are not expensive and you don't want to work with one that is too long. You can nicely explain to your trainer that you need a bit more control than you are getting with the martingale. You should be able to take a walk without having the dog strung up at your leg which is not fun for either of you and a slip collar will allow you to make a correction when necessary and also allow you to slide it up behind her ears as needed.
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"The scientific name for an animal that doesn't either run from or fight its enemies is lunch."-Michael Friedman |