>I have three solid golden cockers to date and they are my absolute favourite breed and colour. I think the advice to avoid the solid golden cockers is ill informed.
I don't have much experience of cockers, but my family's first dog when I was 6 years old was a cocker from a puppy farm in Wales (My parents knew no better in the late 1960's). She was totally blind by the age of 6 through PRA, although there were no eye tests readily available to breeders back then. She also had a lot of dietary intolerances.
She was not a solid colour (Orange Roan) BUT having seen firsthand how severe health issues can be prevalent in puppy farmed dogs, it would not surprise me if issues like Cocker Rage originated in such hellholes, where good temperament and health is some way down the list after saleability. The thing that wrenches me most of all, is that 40 years after we got our puppy-farmed dog, there are still so many (if not more) of her kind being offered for sale, being sold, and STILL those breeders are not being held to account for the damaged dogs they produce, en masse, every year in their hundreds if not thousands.
So do please do your homework and try to find the healthiest dog you can - not just for you, but on behalf of all those that are born without testing and just made for profit...and destined for short disposable lives [not to mention the hideous conditions their parents are kept in at the puppy farms].