When I had Josie in obedience, it was recommened you use a pinch. I did. Was amazed with how well Josie would listen..but, I'm convinced now that it can hurt the dog in some way, so I bought a gentle leader (I believe they are different from halti's??) and was also amazed that she listened so well, AND it doesn't hurt her. I know even with the flat collor with a pulling dog, it can't be too good..Neither of my dogs like the gentle leader too much..I'm thinking they'll get use to it