Hello All! This is going to be a long post, but a simple question. Please bear with me and thanks in advance!!!
I have a 5.5 month old Vizsla. He is a very active (I should say hyper) dog. I know that puppies can be busy, but this one *almost never* sits on his own or rests. And if he does sit down for five minutes (which is rare), the moment he hears anyone stirring, he's up and recharged, running from one end of the house to the other, grabbing and chewing on anything that he can. I have and continue to use all the popular techniques suggested here (positive reinforcement, trading, etc.).
He knows his basic commands (sit, come, lay down, off, go potty, outside, in, break, stay), however the moment that anyone else is around, he becomes immediately so distracted that he becomes like a brick wall when trying to tell him to do something. Of course there are the times where he just looks at me when I tell him to sit or lay down, as if to say, "uhm yeah, I don't think I'm gonna do that now, ok?" He can be so hyper sometimes that you really can't sit around him. Forget trying to be in the TV room and watch anything... his constant jumping up on the couch and running back and forth has caused the entire family to not want to sit in the family room in the evening and relax. He has a bit of a jumping up problem. I've read that a water spray bottle can help this, so I got one yesterday. I remain dedicated to training him and am hoping that this is simple puppy hyperness, however as he gets older, I am beginning to wonder.
He used to have quite a mouthing problem, however thanks to advice from members here (thank you!), we've worked about 70% of that out. He still does mouth (bite) but it is good natured most of the time. There are the times when I am reaching for his collar that he will use his mouth to deter my hand as if to say, "no". That I don't like, but we are working on it. Now when I say off, he does back off.
Ok... so here are my questions and I am truly sorry for the long post. I just thought I would try and get it in all at once!!
1. He hasn't been neutered yet. His testicles haven't dropped. They are currently only the size of a walnut (in the shell). At 5.5 months, I am getting worred.
2. Can I expect that when he does get neutered he will calm down some?
3. Does it sound like the constant "on switch" that this dog has is normal puppy behavior for his age or beginnings of hyper? If it's normal, when can I expect him to settle some?
4. When I take him on walks he constantly pulls and chokes himself. I envy people I see walking their dogs whose dog is walking calmly next to them, content to be at their side and not lead!! Any suggestions on what I can do to improve this or is my dog just simply too young to "fall in line" like that?
I suppose the bottom line is I'm not sure if my expectations are too high for him being so young or if he is displaying pre-hyper issues. If anyone can recommend a book on dog stages... something that says what a dog should be doing at certain ages, I would really appreciate it. We had a dog prior to him for 14 yrs and she was a dream. They didn't get more laid back and sweet. She was a simple mut (Husky and Cocker mix) but I don't know if there was one better created

I love dogs and really have missed not having one in my life for the last few years so we got this puppy. The experience has gone exactly opposite as I imagined, but we are working on it.
Thanks to all of you who offer your opinions day in and out on these boards. I usually don't even have to post because I can find everything I need in the search function.