
I'm with you on this one trialist. Oddly I recently discussed this with my own vet, as I was stocking up with wormer at Cruft's and he just can't offer me such good deals.
I dose a tiny breed with Panacur 10% and have never, in all my years, had any sort of problem. I asked him why I never have runny poos from pups, as I have heard people complain about this. He reckons it is caused if pups have a bad worm burden, and the reason it doesn't affect my pups, is because mum was wormed while pregnant, so pups didn't have a heavy worm burden to contend with.
Anyhows, I totally accept that any breeder is going to recommend whatever they use that works. As I've never had problems, I don't intend to change. I don't use the paste, as I have never had a problem with the suspension. But my breeds need such small doses that it's easy. I understand that people with large breeds sometimes prefer the paste, rather than have white stuff sprayed all over them! :-)
I use Drontal for adult dogs, and because I bought a good quantity from Cruft's got myself an awesome deal! :-)
The only thing I never have in the house is Milbemax, I have 3 Collies, so it is never on my shopping list.