I have a double one and have legitimately come close to serious injury countless times. I can't imagine the core strength you need to triple-wield adult large breed dogs.
It helps that I'm a pretty big guy, but I attach the single leash to my belt so I can counterbalance their pulling with my whole body weight - although I'll also say that I'm pretty diligent about training them, so over the past six months that I've been walking this particular trio they've gotten really well behaved for me so for 90% of walks all I need to do is just direct where to go from the back, follow them down the trail, and untangle them every now and then.
I have a double one and have legitimately come close to serious injury countless times. I can't imagine the core strength you need to triple-wield adult large breed dogs.
It helps that I'm a pretty big guy, but I attach the single leash to my belt so I can counterbalance their pulling with my whole body weight - although I'll also say that I'm pretty diligent about training them, so over the past six months that I've been walking this particular trio they've gotten really well behaved for me so for 90% of walks all I need to do is just direct where to go from the back, follow them down the trail, and untangle them every now and then.