Snickers is 6 months & not neutered. I can't really answer your question (to young to stud) but am looking forward to the replys you get
My breeder wants to use him as a stud & I've read so many cons that I would actually love to hear some pros as I am still contimplating the issue!!
Sounds like you & your yorkie are doing ok with it? How many times has he 'done the deed' (don't know what the proper language would be?)