We just had Colby neutered at 7 1/2 months as mommy wasnt very on the ball
....no seriously, it is because we were having vet issues...but now we found a WONDERFUL vet!! So patient and kind and explains everything and really loving of all animals...shes just great!!! I dont think Colby is as happy about losing his "Nuhn Nahs" but we had a contract with the breeder and hes not for show/breeding anyhow...so its all good!
We got him at 12 weeks and his ears were already up also...just to answer that part of your post too....
have a great day
julie & colby