Hi mate sorry it has taken so long but got hold of Dave today. Boy Blues breeding goes back generations on the Greyhound side and the Whippet Side. On the Greyhound side it starts with a dog called BlackJacks Which was out of a dog called Marrillion.
The Whippet side was out of British Racing Registered Whippets dream Vision and final spell.
Dave has a son of Blue at the moment which he races at Highgate Greyhound stadium and he is winning a lot he is only a young dog his name is wild Boy you will see his results on there.They have a website for the track
If you want to no any