> TBH, I'm not sure how to entirely stop it in a not yet mature adult as I have found it to be a breed trait - I have a similar, but lighter framed, shepherd breed and this type of play is very much the norm for all those I've owned or known in the juvenile stages. IME they mellow with age and so eventually games of that type are kept in house as it were :)
>
You can add Juvenile (to two years) Elkhounds to this too. Fortunately as you say they do mellow and I have found with mien that letting them say hello quickly and moving them on is the best way, as if you try and prevent them greeting other dogs they are looking to outwit you.
I have found teaching steady (meaning slow down go carefully, etc) and the walk on commands the best for these off lead situations,a s expecting a reliable recall from such temptation is asking for failure.
I teach steady in more controlled situations, when rough housing at home,w hen walking up steps or pulling on lead, so the dogs learn it means to ease off and especially to slow down from a gallop say to a walk.
Putting them on lead every time we saw another dog would simply mean they were never off lead as we walk in well frequented areas, and of course they a re not a breed whose natural distance from you is a few feet. Once past the initial buzz round the normal ranging distance when keeping with you is about 25 to 50 feet, not the trotting at heels of around 10 feet of many breeds. As far as they are concerned at that distance they a re with you, and get rather confused if you call them back closer, unless your offering a treat of course ;)
This is why with Elkhounds and breeds that range like Pointers etc you need a big enough area sn to know what lies ahead.
I have even been told off fro being a nag by my now departed oldest, almost as if to say, "well I'm back, what the hell do you want?"