how long of a trial?

JMO....
Get dogs from friends....Unlike some people seem to think, I truly believe that dogs are like a spouse or a horse or anything that you will use in your life that is very important to you. I have a bad habit of loving my dogs, horses and my spouse . You need to get to know them..... I have been using working dogs all of my life (cattle and a few hogs)...I am not a dog trader and I very rarely sell dogs (an accidental breeding of two un-proven dogs) and it will not be to friends (kinda like going to a horse auction). I will give a good dog to a friend. Some of us think we have the perfect set of dogs and others are always looking to improve our pack. Either way you can not go wrong with a real friend, truth be know I could improve my pack but never my friends. Point that I am trying to make is get a dog from a friend you will never go wrong, you know exactly what you are getting...Good Luck.....