hi, i have the same problems with my 5 month pup. i have tried stopping when she pulls, for over 3 weeks, doesnt seem to help. from monday i have been trying the reverse walking technique, when pup pulls then change direction. yesturday i had her walking next to me . it wasnt for long, just about 6 strides , but thats the best she has done and only started it monday. i think different technques suit different dogs, but i would definitely give that a go. ill let you know how i gettingon