Thanks, everybody. It's interesting that nobody who's done it has had any mouth problems as a result of it.
My own experience (with non-retriever breeds) is that it dramatically improves a dog's release, and with an added toss here and there, makes retrievers out of non-retrievers.
I've just been thinking about this and pondering whether the "fact" that we can't do this with retrievers is really a fact or just an old superstition.
As a kid, my father threatened to spank me if he caught me throwing sticks for the Labs (so I made him get me my own dog :wink: ) but my kids threw sticks for mine, and I have never sent a dog for a bird and had him or her come back with a stick.
My father also told me that he'd never own a dog he had to force fetch or use an ecollar on. His current dog has both. :wink:

:wink:
Sometimes we have to re-examine why we do the things we do (or do not do).