On second thought, let me explain my former reply more thoroughly. If you're worried about aggression, that has not been an issue with Gunther and Cyclone. If you're worried about accidental harm during play, it's really just about being vigilant while they are playing and not leaving them alone too often or at least stepping in physically or with commands when it gets too rough. I wouldn't discourage it completely, just be aware of both dogs temperaments before proceeding.
Hail Gunther 7-2-2013
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