I had a show cocker when my daughter was a baby, he was about 6 months when she was born. He was a toal nightmare for 2 years, he was called Chewy, need I say more!! We got him a playmate, another show type, and he is totally different. He is so lazy its unreal, he's never really played, and gets his kicks from sleeping, and stealing Smarties pigs ears! When I lost Chewy, I got Smartie, whos a working type, and I have to say she has been perfect from day one. She has 3 walks a day, and is always belting around off her lead..but in the house she is as good as gold. As long as I am in the room with her she will lie down quietly. She is fantastic with my little Neice, who was born when Smartie was one. She is so gentle, and would never take anything from her. Although she would quite happily run her over for the ball outside!!
Sorry for my ramblings, my point being, every single cocker, working or show is totally different, and I honestly don't think you ever get 2 the same.
Good luck, we want piccies!!!
Good luck with the op too, if you do get her before you'll prob find she senses she needs to be gentle with you, and will just cuddle!!