I have semen in my tank from a bull, Nonen Apple, who has Ready Go as his sire's dam's sire, as well as his sire's sire's sire's sire!
I bought a number of great cows and a bull from the late Steve Gawith and they were excellent cattle.
I ended up purchasing the Primeston herd of Shorthorns, and the stud name and prefix from the owner, who sold Steve his whole polled Shorthorn stud to start the Rozetta stud, which he owned successfully for many years! Primeston kept all the horned cattle!
I intend to put N. Apple and some other historic sires back onto the herd in a few years time!