Breeding Hoodless Orandas

I have always loved the oranda goldfish. I love their long fanned tails. I love there chubby bodies. But what I DON'T love is the oranda "hood"- a bumpy, overgrowth of flesh that grows on top of the fish's head as it gets older. Like this poor guy:

I have always thought that this feature made an otherwise elegant, streamlined fish look top-heavy and very uncomfortable. So I have decided to focus my efforts on breeding hoodless orandas. My favorite colors are calico, and panda. Here's a coulpe pictures of pretty calicos I found online. Also, I found a couple of neet articles. The first, a fish school? No, I mean a school for fish! Just have a look... it's really cute: fish school
And this is a great article on the oranda from Koko's Goldfish World