i dont think you av a problem, i av seen many dogs like this, my last dog was a lakeland he was very agresive with other dogs, but i only used him for earthwork, i kept him on a lead till we got to the earth enterd him,[bANNED TEXT] we finished he'd go back on the lead, if u do it properly and dont double her up u shouldnt have a problem,turns out he was the best dog i av owned to date,hope this helps mate atb snowman.