We went through several litters off CH Norton (Norman) off of GR CH Flash to different bitches, our experience was very very LOW%'s. I can only remember 2, maybe 3 working out. One went 3:45 but he wasn't a quality dog at all imo. He pretty much raced in reverse the entire time.

They were exceptionally bred, rugged durable dogs who were athletic and strong, just mostly defensive fancy dancers who didn't have much heart if any. And VERY hard keeping dogs.

S_B