The First breeder I thought of when I read this was Suda koi farms. I rarely see their name on the winning koi at shows (in nichirin, koi bito, koi-carp and koiusa magazines). But....Teradomari and shinoda used suda stock to begin their breeding program of ginrin kohaku and doitsu gosanke. I have seen teradomari and shinoda win many awards in the magazines. So, do you desire koi from Suda..even though they specifically haven't won the big shows? Your damn right I do!!
Also...Omosako might be cleaning up with shiro utsuri at shows...but I have seen several from Sekko that were excellent. This is regardless of show placement.
Good is good and I don't always care about the pedigree!!!