Thanks for bringing up that study, mine was in an e-mail format, and though I know I kept it, it would take forever to dig it out.
What irritates me about spay and neuter is that everyone is so gung ho for everyone to do it that they ignore all the risks and put out a lot of misinformation about it.
For example, my main reason for neutering Cujo was that I was giving him to my parents, and I was encouraged by vets and by trainers that neutering males will make them easier to manage. Cujo is no easier to manage than Rushie and Rushie has all of his parts. That is one case.
People come up to me in pet stores and while discussing how great my dog is, they then accuse me of wanting the dog to get cancer because he is not neutered. When in fact the opposite is true.
Rescue people pretty much feel that the ends justify the means when encouraging people to spay neuter.
Vets pretty much figure the price tag of the spay neuter is worth encouraging everyone to do this. And they do not bother to mention the problems that spaying/neutering and anesthetic may cause.
And people like attach spaying/neutering to responsible dog ownership like love and marriage. When there is nothing further from the truth. Spay/neuter allows you to be less responsible about your dogs, it is ok if he runs over and plays with the neighbor's bitch, he's fixed. I think not.
And all of this leads the way for legislation to be passed for spay/neuter requirements for dogs as young as four months old.
I would rather see us tell people, that if they wish to keep their dog intact, they need to be vigilent about containing the dog. Whether the dog is neutered or not, they need to be vigilent about containment. People have to stop being lax about security.