I have a show line and am just about to take on my first working line cocker in the next couple of weeks.
I've done a lot of research, not so much into the lines she's from, but around workers in general. I have a collie from mixed lines who's very working in attitude so I do have some experience of the work invloved.. but I expect she will need a lot more.
I compete at flyball and train at agilty, along with some canine conditioning and clicker work at home on top of regular walks, so will be able to offer an active life. Going for walks, even with ball throwing, wouldn't be enough for my collie or my german shep come to that - they are both dogs who needs a job, or they find their own!! My show line cocker on the other hand would be perfectly happy with just ball throwing and chasing squirrels on a walk without the other activties