pinch collars

Question
We have a 7 month female German Shepherd,She has a good temperament,but has a will of her own.We tried other collars but she pulls.The pinch collar seems to work.I have her in obedience classes,last week was the first time and she barked at the other dogs cause she wanted to play.I gave her a quick snap on the leash and she yelped,but it did the trick.Will it make her mean by correcting her with the pinch collar.

Answer
I can't say that it will.  I hope somebody experienced, such as your instructor helped you fit it.  Poorly fitted ones are dangerous.  Because of problems with them, I think they have been banned in the UK.

The best way to control pulling is by technique.  One gentle technique I like is to just stop when he pulls. He wants to go. If you move forward when the leash is slack, and stop when he pulls, he should quickly figure out the only way to get to go, is not to pull. This is about teaching him not to pull, not getting somewhere. The man that taught it to me said "If in a half hour you haven't made it out to the front walk, fine, you have taught him a lesson. Pulling the dog backwards is a good technique too.