Would be quite appropriate to let him free to play with other dogs. I don't think that he's agressive, he's just playing harder. Tara was the same when she was young, most pups owners that come in contact with her said that she was agressive, by the way she played. She kept this habit even after she grown, but I wasn't worried, not even a moment.
Ar fi indicat sa-l lasi liber sa se joace cu alti caini. Nu cred ca este agresiv, doar se joaca mai dur. Si Tara era la fel cand era mica, majoritatea proprietarilor de pui cu care intra in contact se speriau si spuneau ca e agresiva,dupa modul dur de joaca. Si-a pastrat acest obicei si dupa ce-a crescut, dar nu mi-am facut probleme.