Years ago, I was active in NAVHDA. The chapters in both the Bay area and So Cal were very active, with monthly training sessions in the field. There was a book by Sigbot Winterhelt and a man named Bailey I believe that was very good. Short but full of info. If there is a NAVHDA chapter in your area, check them out.
http://shop.dogsunlimited.com/item.asp?n=bk-144&d=47&b=1
Having gone through a few shorthairs back then, I learned the hard way. First dog - too much training and too dependent on me. I had to take her out at night in fenced school yards, follow her in the field, etc. to build her independence. Second dog - very little obedience training as a puppy, but lots of birds and she was so birdy that she was too out of control for me. I gave her to a friend who was a professional trainer, and she ended up being a winner on the Shoot to Retrieve circuit...
Last dog - whoa, sit, stay and come were taught early. (I used the training table as outlined in the book, above.) Lots of time in the field to run as a puppy and I trapped a lot of pigeons to use in training her, as I had with the other dogs. I kept whole quail frozen to use in training during the off-season. Let them thaw a bit, lay trails for her to follow by rubbing the bird on the ground, leaving a few feathers there and draggin the bird on a string for 20-50 yards. (The partially frozen bird is cold and hard inside so it helps the dog learn not to bite down on a retrieved bird...
Whoa is the most important command in my opinion. It establishes your control over the dog and helps when teaching staunchness on point and steadiness to wing, shot, etc.