Thats a good reply Dogman and good advice. Get that pup out, let it become accustomed to the surroundings you will later hunt it in, smells, sights and sounds. It will soon find sommat to run and if it does, great. It'll come to no harm and only learn from the expierience and want to do it again. By all means, carry on with your basic training too, retrieving etc.
As far as i'm concerned, for pups of that age there is no such thing as a 'closed season', it needs the best start in life and that would be free running through fields to learn the basics of its future vocation BUT with no press