Thanks for replies, my first response was also what a load of rubbish!!!!
My Indi,( F) Blue, bit of a loon, but sharp as a tack, quick to learn, bossy, hyperactive, independent, barker, real personality, at the Obed club everyone's comments about her, a real worker if only we could harness her enthusiasm she will be brilliant. Kody, (m) Black not the sharpest tool in the shed, but eager to please, quiet boy, his ideal day, to sleep on my lap then have a run around then back to snooze but, he has 1 obedience pass 89 / 100 which he got at 18 months none after that but Indi now nearly 4 yrs is just managing to stand still for the SFE but she can do the dumbell work, scent discrimination, and seek back (tracking) and out of sight stays. He can do dumbell, takes to long and has to pick up all the articles in scent discrimination, and seek back I'm not sure, wouldn't let me go out of sight. Her mother is his grandmother, so both from the same breeder, I think as seems the general senses here it depends on gender, and individual dog and parents, he has a much lower energy level than her. At our last trial a friend's friend who is an animal behaviourist, was watching us in the ring ( I think that made me so nervous, we completely stuffed up big time) made the comment that my two are so different completely opposite ends of the spectrum this makes it harder for me with training, I know that he just can't handle me when I get nervous in the ring and completely closes down. You'd swear he never been taught anything, where Indi can handle me better and doesn't freak out. Great dogs shame about the owner