My dog leather is great on her prong collar! it does not hurt her, just really bugs her...i never knew that it caused damage to the throat, but im pretty sure that most other collars would too...she does act much better on a haltee, as she is not as social a dog as my Timber, who works better on leathers prong collar than her haltee (im not allowed to switch cuz leather lives at my other house and timber lives here) You should never put a haltee on a dog that is very social, loves to sniff and look around, or is often distracted, because the haltee sometimes slides up and limits their view, and it also makes their head stay in one position so it cant move to the side to see what might be there...thats y some people choose body harnesses instead of haltees cuz it lets them look around but enables their body to move in positions u dont want them too....I think that one of the best collars is one of those whistle ones ( i cant remember what its called). every time the dog pulls, a high pitched whistle pierces the air. it drives them crazy and they learn fast, but they r quite expensive (i saw them in a magazine for 30 dollars)