I have been trying to find a vet to neuter Owen, and one I as his permanent vet. I went to meet one, who was based on referrals from a lot of close friends, all who loved him and this vet neutered their dogs (not Boxers though). I was talking to him about ACE and he says its fine. He uses it sometimes for extreme cases. I told him if I got Owen neutered there I do NOT want them using ACE for any reason. He insisted he’s never seen a problem with it, they don’t use it often anyway. But I made him write “NO ACE” on Owen’s chart. Well I will NOT be getting him neutered there. I don’t want to have to beg them not to use it. Since then I’ve met with 2 more vets, both of which said they NEVER use ACE on Boxers and that’s what I want to hear.
If you don’t feel totally comfortable then I would go somewhere else. I don’t see the rush with getting him neutered anyway. Owen is 8 months old and I will be getting him neutered after the holidays.
Whatever you decide to do I wish you the best of luck! And a speedy recovery for Wilson!