I can't say I agree with this.. Nor do I think the dogs valve decreases. Because that spayed/neutered dog can have valve to someone, somewhere..
Nor do I think a dogs drive decreases when they've been spayed or neutered.. or at least not that I've seen..
If one is looking to make money Mrs. K then yeah I suppose the dog loses it's valve, but not everyone in the sport of SchH is looking to breed their dog or produce puppies.. Good genetics or not.. Some people have other motives for doing the sport..
Well, it's my experience and you won't find anyone, back where I'm from, that would ever spay their dog without a medical reason. Everything else is viewed as an invasion into the animals health and completely unnecessary.
Maybe people are just better equipped or better prepared to deal with bitches in heat and certain other things than pet people are (yes I'm generalizing). I know I have no issue in separating males and females.
I have an intact male and female and in four years I've had not a single oops litter even though I don't do anything other special than crating.
If you listen to the speuter crazy chorus keeping two intact dogs together is merely impossible without producing an oops litter. So no reason to spay.
Unless I have proof of pyometra, there will be no spay.
And I won't spay just because there could be a health problem down the road. Nobody is taking out my reproductive organs either. And I won't spay just because I might re-home or sell a dog and just because the new owners could be bad.
I would like to re-home my dogs within the community and if I pay 80 bucks an hour and have an awesome bitch, then yeah, I would like for her to continue that path and possibly be used to strengthen the gene pool.