I have one girl with her tail and one without and haven't had health issues with either.  I had my Molly's pups get their tails docked, not too much fuss.  But after my mom had her last litter done a couple of weeks ago, and those 6 puppies crying for 12 hours.  I'm not sure that I would want to go thru it again.  Standard or not...It really gave me something to think about.  JMO
