The same as a choke chain? No. Martingale's have a limit to how much they will tighten. Choke chains do not.
And, they are so important for certain breeds not to slip their collars and run loose.
I'm not a martingale expert, not having small headed breeds as pets, but here are my thoughts:
1 - Once a pup can walk without pulling all the time, he's a candidate for a martingale.
2 - Maybe you can begin with harness and martingale, and phase out the harness?
3 - For a pup, I'd not use it when unsupervised, or when he's crated. I don't know how people handle adults and those situations.
4 - It will need to be just right, size-wise (so will probably need replacing a couple of times.).
5 - If the 2nd loop is a bit too long, and I guess this comes down to wearing it only when supervised, he might be able to get his lower jaw caught in it. I've heard of that happening.
I see no reason not to start practicing with one if you like, but don't know what you can do about the class, since they sound adamant.
Is Aragorn good on the leash?
Krypto is perfect...except when he's not. Sometimes, when he's having a moment, or is extra excited about something, he forgets his leash manners. He's surprisingly good, but not 100% all the time yet. I keep telling Dh that he's only 3 1/2 months...well, 3 3/4 months now. Not bad for 4 weeks here, I say!
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