I have made the appointment for Boomer to be neutered at 11 months. I know many people on this forum think that's too early but honestly, he is still trying to dominate me and my daughter. We took him to training and have also paid $500 to have Bark Busters come three times. I have really tried to be patient but he is still nipping constantly and even with the tricks we have learned from Bark Busters, he continually tries to test us so I have decided I have held out long enough. Hopefully he will settle down as he is a cute big guy, it's just that the nipping has to stop (and believe me I have tried every suggestion offered on this forum as well).