I simply cannot disagree more with virtually everything you've written. I don't know which retriever game you played, or how you and/or your pro trained for it, but I would respectfully suggest that if one applied so much pressure to take the initiative out of the dog using a Carr based program, they really didn't understand the program correctly. You got out of the retriever games 15 years ago...suffice it to say that a lot has changed in that time frame regarding retriever training... I would bet you could say the same for spaniel training (perhaps).
There's a bunch of Labs that make the trek to SD every year for our pheasant hunt; 2 all-age field trial dogs, 2 Master Hunters, 1 Senior Hunter (who probably got his master pass this summer), a couple of meat dogs, and my Sophie, who is 1-for-1 on Junior Hunter passes...all of them hunt with abandon, yet under control, and do a stellar job in the pheasant field. Well, Sophie will be getting a little OJT on this year's hunt...but I'm confident that I and my pro have instilled the right foundation for her to be a great dog (she just turned 2)
I'm with Westksbowhunter on this one: in my 30 years of Labs, I've trained them Amish and I'm now training them with Carr-based programs. There's nothing in a Carr-based program that will adversely affect a dog's initiative or make it inhibited in a real hunting environment when that program is correctly taught/applied.
You do make a valid comment re: spaniel trainers do things a certain way for a reason; I'm going to respectfully suggest that is because they're training spaniels. Lab guys also do things in a specific way for a reason...they're training Labs. Last I looked, the OP (whom we've probably scared away by now) is getting a Lab. IMHO, he would be best served using a program designed for Labs, and he would absolutely find guys who know what they're doing by joining a retriever club.