Hello and thanks in advance for reading. We have 2 Boxers, aged 5 months old, Buster and Jezebel, that we are having some trouble with with regards to controlling them during their walks and are wondering which collar is best for active, playful pullers. In the past our Boxers have not been big pullers and walked for us quite nicely with a standard nylon neck collar. I was even able to use the little nylon double attachment and walk them together just fine and they were awesome! This is however our first time having two of the exact same age which has been both a challenge and a blessing. They are very playful, energetic pups. Our first mishap happened when on a night walk and were were using new glow collars, which were nylon around neck with lights. They were not made well and because of the slipper surface, the collar became loose and Buster slipped out of it and took off. Luckily he was well lit and really not inclined to escape us by too much but it was big fun for him and very dangerous and stressful for us getting him back. Since then we have been using regular nylon collars that don't slip open, made better, however on the way home, if I'm walking them alone, they start trying to play and I really struggle to control them. It's not that I cannot keep them on their leash but I have trouble getting them to stop nipping one another and jumping up and trying to get the leash etc. Cute but not cute. Today I tried out new PoyPet Brand harnesses that received high reviews. This is my first foray into the harness world and it was a miserable failure. I'm must not have fitted them properly. The walk went fine and I was feeling pretty good about ordering these harnesses until we were almost home and they started the nipping and jumping game. While attempting to control them, I pulled their leashes tight and each one wriggle around and slipped out of the harnesses. Our street has 45mph speed limit and it was around the time people were getting off work so needless to say I was highly distressed trying to catch my male who trotted off and was running up and down the grassy side of the road area playfully keeping away from me. Luckily our female wasn't struggling too hard to get away from me but even after I lured him in they both wriggled so much I lost him a second time. Luckily my hubby was almost home and stopped to assist. This could have ended very badly. He was very upset and is insistent we try a choke chain. I've noticed that Cesar Milan seems to use the Herm Sprenger type collars on his show. I know little about either collar. I do know that it's obvious that a choker or Herm Sprenger is going to be something where my pups might get choked and/or pain to control them which I'm not sure about. I did read through the old board in this forum but since it was over 10 years old, thought people here might offer non-judgmental advice on best collars and personal experiences. Thanks for any help.