I like the dew claws on...no "agenda" here.
In my library is "Peak Performance" , Coaching the Canine Athlete by M. Christine Zink DVM, PhD and Illustrated by Marcia Schlehr..2nd edition..
Also, "Jumping from A to Z", Teach Your Dog to Soar, ..again M. Christine Zink....and Julie Daniels.
I also own "A Study of the Golden Retriever" by Marcia R. Schlehr, 3Rd Edition. "Intent is to explain and clarify the Breed standard.. and to relate its requirements to the Golden's original intended function as a working retriever of game birds, and to those characteristics that make up "breed type"." etc etc.
In "Peak Performance"..pg 35..regarding Feet..she describes how many dogs have dewclaws. ..that some breeds have rear dewclaws, as well...and some breed standards require to have double dewclaws on rear legs..the Great Pyrenees and Briard. ..she goes on to say some breed standards spedify if dewclaws may be removed. and that removal prevents them from getting caught and injured..running over rough terrain, crusted snow etc. ..that it is relatively easy to surgically remove in pups three to five days of age..
She goes on to say that probably dew claws do assist in dog turning..especially when bearing its weight on one front leg..pastern is flat on ground, carpal pad cushions carpal joint as it his ground. Dewclaw is in contact with ground and may assist in turning by digging into the ground as dog's leg rotates... She explains function of the pads and in relation to the claws.
There are diagrams and actual pictures of dog's landing after a jump with pastern flat..
Everything seems to be explained..the options to have dew claws removed..or not..or per breed standard. It appears to be an explanation of the dew claws and their place in the dog's structure and possibly to assist the dog in movement..
One can understand..as explained in the book.. how the pads and claws together, would help the dog to move correctly, not slip..
The agility world...the dogs do such a huge amount of jump training. Then in trial, they must jump to a specific height depending on dog's height at withers. The sport has become very technical and fast to be competitive these days.. Dogs must jump tight, wrap/turn quickly after jumping...weave poles put great stress on their entire body including feet to push through. It goes on and on... they climb A-Frames, ramps to dog walks...see saws that hit the ground hard upon tipping.. This is a huge weight bearing sport..
Dogs..when puppies are taught where their front feet are in relation to their hind feet, with specific training for just that...so that they handle themselves safely and with confidence on all agility obstacles. This would also be true for obedience training to the higher levels.
My long-time obedience and agility trainer believes that her first Border Collie would have fared better in his physical health had the dew claws been left on.. He is a MACH..Master Agility Champion but retired at 7 years of age due to joint pain, arthritis, pasterns, scar tissue in the area. Whether or not that is true..is her opinion. But..she knows her dog and how he moves. She feels that dew claws would have been of benefit to him. Really , there is not "agenda" there at all..I know that for a fact!l
I really do not think there is an "agenda" in these books. But an explanation of canine movement, and the physical issues that dog's have in the sports they compete in..
These books are a source of information and education for me..to help me to teach my dog's to jump and move correctly and safely... in both agility and obedience competition. Obedience offers the high jump, bar jump and broad jump..a dog needs to jump correctly to be safe. The handler must know what the dog needs in distance to reach the take off point to jump..the landing before turning after the jump so that injury does not occur. This is all carefully trained in "pieces" .
This training and conditioning that is suggested does not hurt in field training and trialing, either, quite the opposite..at least in my humble opinion..
Have to add one more thing...my now retired Golden Retriever, "Andi", and I were students of Julie Daniels..and attended her well known Competition Camp, at her White Mountain Agility School, in NH some time ago. No one could have cared more for a dog's welfare than Julie..
"Edit"...we have two Golden boys with dew claws (breeder did not remove) and our pup is without them (breeder did remove)
Judy