Mr Biggs is out of Blue Mountain Bullies in Eugene, OR, You can find them on Facebook as Mountain Pride Bullies. Their current profile pic is Mr Biggs. He is Fenris's grandfather on mother's side.
Only harder to control the dog if they don't properly respect you. I've had pitbulls, Am Staffs, beagles, mutts, doberman, and a wolf hybrid. I know how to handle and raise a dog.
As far as teething... He's teething now. I've gotten him toys and rawhides. He's learning what he can and what he can't chew on.
Tonight he got a treat as well. Froze some chicken broth in an ice cube tray and gave him two little ones that were done. Good treat for hot days. He really liked them.