
I will try!!
With our scoring system, each hip gets its own score (henc the 3/6). That is usually followed by the total (both added together) like this.... 3/6 = 9.
The lower the score, the better the hips. The range for each hip is 0-53, or total 0-106 (0 being the best, 106 the worst). Our BVA also produce a list of the Mean scores for each breed, and this value is basically what the KC and BVA recommend dogs to use as a guide for breeding, with dogs being used if they are well below the mean for that particular breed. For example, the 'mean' may be 20, so it is not recommended to breed from a dog unless it's total score is below 20.
Of course, all of this is a guideline, leaving breeders to do what they like (they do not even have to score here if they do not wish to).
Elbows are slightly different, and I am not very up on elbows. From what I can gather, they are scored from 0 to 3, with 0 being the best. If one elbow has 0 and the other has 2 the score given would be 2 (is that right?).
I also have OFA'd dogs, and although it is simple to understand, it leavese a lot of room for interpretation. After all, how large is the range between a good 'good' and a bad 'good'? Here you would have (and please don't take this literally) a range of maybe 10-20, with 10 being a good 'good', and 20 being a bad 'good', so we know exactly where we stand. Does that make any sense?
I understand that the PennHip test is more like ours, but I must say, I don't like the way it is done, and I think it is performed on animals too young, but that is only my own opinion. At least it is not a system that has to be used, as you can still use OFA too.
Incidentally, foreign dogs can have their hips scored under our system, but they would need to be submitted to our BVA. It would be interesting to see an OFA'd dog be done under the BVA scheme using the same x-rays, and see how the score's relate!
I hope this helps a little, I am sure I am wrong somewhere, so if anyone else knows better, then by all means chip in!!
By the way... where in the USA are you from? I lived in Missouri and Ohio over a period of 5.5 years, we came back to the UK in August 2006!
Millie